diff --git a/front/core/components/crud-model/crud-model.js b/front/core/components/crud-model/crud-model.js
index 4f3058305..0839881ab 100644
--- a/front/core/components/crud-model/crud-model.js
+++ b/front/core/components/crud-model/crud-model.js
@@ -207,8 +207,8 @@ export default class CrudModel extends ModelProxy {
     sendRequest(filter, append) {
         this.cancelRequest();
         this.canceler = this.$q.defer();
-        this.isRefreshing = !append;
         this.isPaging = append;
+        if (!append) this.status = 'loading';
 
         let params = Object.assign(
             {filter},
@@ -221,9 +221,8 @@ export default class CrudModel extends ModelProxy {
 
         return this.$http.get(this._url, options).then(
             json => this.onRemoteDone(json, filter, append),
-            json => this.onRemoteError(json)
+            json => this.onRemoteError(json, append)
         ).finally(() => {
-            this.isRefreshing = false;
             this.isPaging = false;
         });
     }
@@ -243,7 +242,12 @@ export default class CrudModel extends ModelProxy {
         this.onRequestEnd();
     }
 
-    onRemoteError(err) {
+    onRemoteError(err, append) {
+        if (!append) {
+            this.clear();
+            this.status = 'error';
+        }
+
         this.onRequestEnd();
         throw err;
     }
diff --git a/front/core/components/data-viewer/index.html b/front/core/components/data-viewer/index.html
index 1a5a76ef8..dd696fda3 100644
--- a/front/core/components/data-viewer/index.html
+++ b/front/core/components/data-viewer/index.html
@@ -1,22 +1,28 @@
-<div ng-if="$ctrl.hasData">
+<div ng-if="$ctrl.isReady">
     <div ng-transclude></div>
     <vn-pagination
-        model="$ctrl.model">
+        model="$ctrl.model"
+        pad-medium-top>
     </vn-pagination>
 </div>
 <div
     class="empty-rows"
-    ng-if="!$ctrl.hasData"
+    ng-if="!$ctrl.isReady"
     ng-switch="$ctrl.status">
     <vn-spinner
         ng-switch-when="loading"
-        enable="true">
+        enable="::true">
     </vn-spinner>
     <span
         ng-switch-when="clear"
         translate>
         Enter a new search
     </span>
+    <span
+        ng-switch-when="error"
+        translate>
+        Ups! It seems there was an error
+    </span>
     <span
         ng-switch-when="empty"
         translate>
diff --git a/front/core/components/data-viewer/index.js b/front/core/components/data-viewer/index.js
index 2ec61ee5a..1f967d94b 100644
--- a/front/core/components/data-viewer/index.js
+++ b/front/core/components/data-viewer/index.js
@@ -2,28 +2,22 @@ import ngModule from '../../module';
 import './style.scss';
 
 export default class DataViewer {
-    get computedData() {
-        return this.data || (this.model && this.model.data);
-    }
-
-    get computedLoading() {
-        return this.isLoading || (this.model && this.model.isRefreshing);
-    }
-
-    get hasData() {
-        let data = this.computedData;
-        return data && data.length;
+    get isReady() {
+        return this.status == 'ready';
     }
 
     get status() {
-        if (this.hasData)
-            return null;
-        if (this.computedLoading)
+        if (this.model)
+            return this.model.status;
+
+        if (this.isLoading)
             return 'loading';
-        if (this.computedData)
-            return 'empty';
-        else
+        if (!this.data)
             return 'clear';
+        if (this.data.length)
+            return 'ready';
+        else
+            return 'empty';
     }
 }
 
diff --git a/front/core/components/index.js b/front/core/components/index.js
index 54f9f18f2..ff063ad24 100644
--- a/front/core/components/index.js
+++ b/front/core/components/index.js
@@ -26,7 +26,6 @@ import './card/card';
 import './float-button/float-button';
 import './step-control/step-control';
 import './label-value/label-value';
-import './paging/paging';
 import './pagination/pagination';
 import './searchbar/searchbar';
 import './scroll-up/scroll-up';
diff --git a/front/core/components/model-proxy/model-proxy.js b/front/core/components/model-proxy/model-proxy.js
index 342841bda..1eaf749d5 100644
--- a/front/core/components/model-proxy/model-proxy.js
+++ b/front/core/components/model-proxy/model-proxy.js
@@ -57,6 +57,7 @@ export default class ModelProxy extends DataModel {
     constructor($element, $scope) {
         super($element, $scope);
         this.resetChanges();
+        this.status = 'clear';
     }
 
     get orgData() {
@@ -90,6 +91,14 @@ export default class ModelProxy extends DataModel {
 
     set data(value) {
         this._data = value;
+
+        if (value == null)
+            this.status = 'clear';
+        else if (value.length)
+            this.status = 'ready';
+        else
+            this.status = 'empty';
+
         this.emit('dataChange');
         this.emit('dataUpdate');
     }
@@ -109,8 +118,12 @@ export default class ModelProxy extends DataModel {
             this.removed.push(item);
 
         this.isChanged = true;
+        if (!this.data.length)
+            this.status = 'empty';
+
         this.emit('rowRemove', index);
         this.emit('dataUpdate');
+
         if (this.autoSave)
             this.save();
     }
@@ -131,8 +144,11 @@ export default class ModelProxy extends DataModel {
             this.data.push(newRow);
 
         this.isChanged = true;
+        this.status = 'ready';
+
         this.emit('rowInsert', index);
         this.emit('dataUpdate');
+
         return index;
     }
 
@@ -322,10 +338,10 @@ export class Paginable {
     }
 
     /**
-     * @type {Boolean} Whether the model is refreshing.
+     * @type {ready|loading|clear|empty|error} The current model status.
      */
-    get isRefreshing() {
-        return false;
+    get status() {
+        return null;
     }
 
     /**
diff --git a/front/core/components/pagination/pagination.html b/front/core/components/pagination/pagination.html
index 9da15c002..5bc1b67f6 100644
--- a/front/core/components/pagination/pagination.html
+++ b/front/core/components/pagination/pagination.html
@@ -1,13 +1,12 @@
-<div
-    ng-if="$ctrl.model.moreRows">
+<div ng-if="$ctrl.model.moreRows">
     <vn-icon-button
-        ng-if="!$ctrl.model.isLoading"
+        ng-if="!$ctrl.model.isPaging"
         icon="more_horiz"
         vn-tooltip="Load more"
         ng-click="$ctrl.onLoadClick()">
     </vn-icon-button>
     <vn-spinner
-        ng-if="$ctrl.model.isLoading"
-        enable="$ctrl.model.isLoading">
+        ng-if="$ctrl.model.isPaging"
+        enable="::true">
     </vn-spinner>
 </div>
\ No newline at end of file
diff --git a/front/core/components/pagination/style.scss b/front/core/components/pagination/style.scss
index 0cacb53e3..2610bc502 100644
--- a/front/core/components/pagination/style.scss
+++ b/front/core/components/pagination/style.scss
@@ -3,7 +3,8 @@ vn-pagination {
     display: block;
     text-align: center;
 
-    & > div > vn-icon-button {
+    & > div  > vn-icon-button {
         font-size: 2em;
+        padding: 0;
     }
 }
\ No newline at end of file
diff --git a/front/core/components/paging/paging.html b/front/core/components/paging/paging.html
deleted file mode 100644
index 6e71f321d..000000000
--- a/front/core/components/paging/paging.html
+++ /dev/null
@@ -1,11 +0,0 @@
-<paging
-    page="$ctrl.currentPage" 
-    page-size="$ctrl.numPerPage"
-    ng-if="$ctrl.numPages>1"  
-    total="$ctrl.numItems"
-    show-prev-next="true"
-    show-first-last="false"
-    active-class="active"
-    ng-click="$ctrl.figureOutToDisplay()"
-    paging-action="$ctrl.onPageChange(page)">
-</paging>
\ No newline at end of file
diff --git a/front/core/components/paging/paging.js b/front/core/components/paging/paging.js
deleted file mode 100644
index 850b9c722..000000000
--- a/front/core/components/paging/paging.js
+++ /dev/null
@@ -1,58 +0,0 @@
-import ngModule from '../../module';
-import './style.scss';
-
-export default class Paging {
-    get numPages() {
-        return Math.ceil(this.numItems / this.numPerPage);
-    }
-
-    constructor($http, $scope) {
-        this.$http = $http;
-        this.$scope = $scope;
-        this.where = this.filter;
-        this.numPerPage = null;
-        this.numItems = 0;
-        $scope.$watch('$ctrl.index.model.length', () => this.onModelUpdated());
-    }
-
-    $onChanges(changes) {
-        if (!this.index) return;
-        this.numPerPage = this.index.filter.size;
-        this.currentPage = this.index.filter.page;
-        if (changes.total)
-            this.numItems = changes.total.currentValue;
-    }
-
-    onModelUpdated() {
-        let index = this.index;
-        let filter = index.filter;
-
-        if (filter.page >= this.numPages && index.model.length >= this.numPerPage)
-            this.numItems = filter.page * filter.size + 1;
-    }
-
-    onPageChange(page) {
-        this.index.filter.page = page;
-        if (typeof this.pageChange === 'undefined') {
-            this.index.accept();
-        } else {
-            this.pageChange();
-        }
-    }
-    $doCheck() {
-        if (this.index && this.index.filter && this.index.filter.page && this.index.filter.page != this.currentPage) {
-            this.currentPage = this.index.filter.page;
-        }
-    }
-}
-Paging.$inject = ['$http', '$scope'];
-
-ngModule.component('vnPaging', {
-    template: require('./paging.html'),
-    bindings: {
-        index: '<',
-        pageChange: '&?',
-        total: '<'
-    },
-    controller: Paging
-});
diff --git a/front/core/components/paging/paging.spec.js b/front/core/components/paging/paging.spec.js
deleted file mode 100644
index 9f6023ff6..000000000
--- a/front/core/components/paging/paging.spec.js
+++ /dev/null
@@ -1,65 +0,0 @@
-import './paging.js';
-
-describe('Component vnPaging', () => {
-    let $scope;
-    let controller;
-
-    beforeEach(angular.mock.module('vnCore', $translateProvider => {
-        $translateProvider.translations('en', {});
-    }));
-
-    beforeEach(angular.mock.inject(($componentController, $rootScope) => {
-        $scope = $rootScope.$new();
-        controller = $componentController('vnPaging', {$scope});
-    }));
-
-    describe('$onChanges()', () => {
-        it(`should define numberPage and currentPage based on index.filter properties`, () => {
-            controller.index = {filter: {size: 'something', page: 'something else'}};
-            controller.$onChanges({index: 'simpleChange', currentValue: 'current value', previousValue: 'previous value'});
-
-            expect(controller.numPerPage).toBe(controller.index.filter.size);
-            expect(controller.currentPage).toEqual(controller.index.filter.page);
-        });
-
-        it(`should define numItems based on changes.total.currentValue`, () => {
-            controller.index = {filter: {size: 'something', page: 'something else'}};
-            controller.$onChanges({total: {currentValue: 'current value'}});
-
-            expect(controller.numItems).toEqual('current value');
-        });
-    });
-
-    describe('onModelUpdated()', () => {
-        it(`should define controllers numItems as the result of page times size plus one`, () => {
-            controller.numPerPage = 2;
-            controller.index = {
-                filter: {size: 10, page: 10},
-                model: ['one mother..', 'another model..', 'last model..']
-            };
-            controller.onModelUpdated();
-
-            expect(controller.numItems).toBe(101);
-        });
-    });
-
-    describe('onPageChange()', () => {
-        it(`should call accept() since pageChange property is undefined`, () => {
-            controller.index = {accept: () => {}, filter: {page: 0}};
-            spyOn(controller.index, 'accept');
-            controller.onPageChange(100);
-
-            expect(controller.index.accept).toHaveBeenCalledWith();
-        });
-
-        it(`should call pageChange() since pageChange property isn't undefined`, () => {
-            controller.index = {accept: () => {}, filter: {page: 0}};
-            controller.pageChange = true;
-            spyOn(controller, 'pageChange');
-            controller.onPageChange(100);
-
-            expect(controller.pageChange).toHaveBeenCalledWith();
-        });
-    });
-});
-
diff --git a/front/core/components/paging/style.scss b/front/core/components/paging/style.scss
deleted file mode 100644
index e88202e49..000000000
--- a/front/core/components/paging/style.scss
+++ /dev/null
@@ -1,40 +0,0 @@
-@import "variables";
-
-vn-paging {
-    display: block;
-    text-align: center;
-    
-    ul {
-        box-shadow: 0 0 .4em $color-shadow;
-        background-color: #fff;
-        display: inline-block;
-        margin: 20px 0;
-        border-radius: .1em;
-        padding: 0;
-    }
-    li {
-        display: inline;
-
-        &:first-child > a,
-        &:first-child > span {
-            margin-left: 0;
-        }
-        &.active > a {
-            background: $color-active;
-            color: #fff;
-        }
-        & > a,
-        & > span {
-            position: relative;
-            float: left;
-            padding: 6px 12px;
-            margin-left: -1px;
-            line-height: 1.42857143;
-            color: inherit;
-            text-decoration: none;
-        }
-        &:not(.active) > a:hover {
-            background-color: #ddd;
-        }
-    }
-}
diff --git a/front/core/components/popover/popover.js b/front/core/components/popover/popover.js
index 8babe867d..be6546246 100644
--- a/front/core/components/popover/popover.js
+++ b/front/core/components/popover/popover.js
@@ -180,11 +180,8 @@ export default class Popover extends Component {
 
     onDocKeyDown(event) {
         if (event.defaultPrevented) return;
-
-        if (event.keyCode == 27) { // Esc
-            event.preventDefault();
+        if (event.code == 'Escape')
             this.hide();
-        }
     }
 
     onMouseDown(event) {
diff --git a/front/core/locale/es.yml b/front/core/locale/es.yml
index 01a17aa48..1fcd12b98 100644
--- a/front/core/locale/es.yml
+++ b/front/core/locale/es.yml
@@ -24,6 +24,9 @@ Value should be %s characters long: El valor debe ser de %s carácteres de longi
 Value should have a length between %s and %s: El valor debe tener una longitud de entre %s y %s
 Value should have at least %s characters: El valor debe tener al menos %s carácteres
 Value should have at most %s characters: El valor debe tener un máximo de %s carácteres
+Enter a new search: Introduce una nueva búsqueda
+No results: Sin resultados
+Ups! It seems there was an error: ¡Vaya! Parece que ha habido un error
 General search: Busqueda general
 January: Enero
 February: Febrero
diff --git a/front/core/vendor.js b/front/core/vendor.js
index 44d041ebe..ac4364feb 100644
--- a/front/core/vendor.js
+++ b/front/core/vendor.js
@@ -7,10 +7,6 @@ import 'angular-translate-loader-partial';
 import '@uirouter/angularjs';
 import 'mg-crud';
 import 'oclazyload';
-/*
-import 'angular-material';
-import 'angular-material/modules/scss/angular-material.scss';
-*/
 import 'angular-moment';
 
 export const ngDeps = [
@@ -18,7 +14,6 @@ export const ngDeps = [
     'ui.router',
     'mgCrud',
     'oc.lazyLoad',
-    // 'ngMaterial',
     'angularMoment'
 ];
 
diff --git a/front/salix/locale/es.yml b/front/salix/locale/es.yml
index 2056210e4..898728363 100644
--- a/front/salix/locale/es.yml
+++ b/front/salix/locale/es.yml
@@ -14,8 +14,6 @@ Push on applications menu: Para abrir un módulo pulsa en el menú de aplicacion
 Return to module index: Volver a la página principal del módulo
 What is new: Novedades de la versión
 Settings: Ajustes
-Enter a new search: Introduce una nueva búsqueda
-No results: Sin resultados
 
 # Actions
 
diff --git a/modules/client/front/credit/index/locale/es.yml b/modules/client/front/credit/index/locale/es.yml
index b4b5940cf..a15a1085f 100644
--- a/modules/client/front/credit/index/locale/es.yml
+++ b/modules/client/front/credit/index/locale/es.yml
@@ -1,3 +1,2 @@
 Since : Desde
-Employee : Empleado
-No results: Sin resultados
\ No newline at end of file
+Employee : Empleado
\ No newline at end of file
diff --git a/modules/client/front/recovery/index/locale/es.yml b/modules/client/front/recovery/index/locale/es.yml
index 5b21429f4..0cb5b3ed6 100644
--- a/modules/client/front/recovery/index/locale/es.yml
+++ b/modules/client/front/recovery/index/locale/es.yml
@@ -1,5 +1,4 @@
 Since: Desde
 Employee: Empleado
-No results: Sin resultados
 To: Hasta
 Finish that recovery period: Terminar el recobro
\ No newline at end of file
diff --git a/modules/item/front/locale/es.yml b/modules/item/front/locale/es.yml
index c922656c4..c071d2c69 100644
--- a/modules/item/front/locale/es.yml
+++ b/modules/item/front/locale/es.yml
@@ -33,8 +33,6 @@ Remove niche: Quitar nicho
 Add barcode: Añadir código de barras
 Remove barcode: Quitar código de barras
 Buyer: Comprador
-No results: Sin resultados
-Enter a new search: Introduce una nueva búsqueda
 Tag: Etiqueta
 Worker: Trabajador
 Available: Disponible
diff --git a/modules/order/front/catalog/index.js b/modules/order/front/catalog/index.js
index a5d7ee968..758c56f0e 100644
--- a/modules/order/front/catalog/index.js
+++ b/modules/order/front/catalog/index.js
@@ -131,7 +131,7 @@ class Controller {
     }
 
     get isRefreshing() {
-        return this.$scope.model && this.$scope.model.isRefreshing;
+        return this.$scope.model && this.$scope.model.status == 'loading';
     }
 }
 
diff --git a/modules/order/front/locale/es.yml b/modules/order/front/locale/es.yml
index 943606a47..0ada37bfd 100644
--- a/modules/order/front/locale/es.yml
+++ b/modules/order/front/locale/es.yml
@@ -3,8 +3,6 @@ Catalog: Catálogo
 from: desde
 results: resultados
 More than: Más de
-No results: Sin resultados
-Enter a new search: Introduce una nueva búsqueda
 Plant: Planta
 Flower: Flor
 Handmade: Confección