diff --git a/loopback/locale/en.json b/loopback/locale/en.json
index a7e21960b..8c1ee7bb9 100644
--- a/loopback/locale/en.json
+++ b/loopback/locale/en.json
@@ -240,6 +240,9 @@
 	"There is already a tray with the same height": "There is already a tray with the same height",
 	"The height must be greater than 50cm": "The height must be greater than 50cm",
 	"The maximum height of the wagon is 200cm": "The maximum height of the wagon is 200cm",
-    "The quantity claimed cannot be greater than the quantity of the line": "The quantity claimed cannot be greater than the quantity of the line",
-    "There are tickets for this area, delete them first": "There are tickets for this area, delete them first"
-}
+	"The quantity claimed cannot be greater than the quantity of the line": "The quantity claimed cannot be greater than the quantity of the line",
+	"There are tickets for this area, delete them first": "There are tickets for this area, delete them first",
+	"null": "null",
+	"Invalid or expired verification code": "Invalid or expired verification code",
+	"Payment method is required": "Payment method is required"
+}
\ No newline at end of file
diff --git a/loopback/locale/es.json b/loopback/locale/es.json
index 9f01bd290..144046f56 100644
--- a/loopback/locale/es.json
+++ b/loopback/locale/es.json
@@ -385,5 +385,6 @@
 	"The quantity claimed cannot be greater than the quantity of the line": "La cantidad reclamada no puede ser mayor que la cantidad de la línea",
 	"type cannot be blank": "Se debe rellenar el tipo",
 	"There are tickets for this area, delete them first": "Hay tickets para esta sección, borralos primero",
-	"There is no company associated with that warehouse": "No hay ninguna empresa asociada a ese almacén"
-}
\ No newline at end of file
+	"There is no company associated with that warehouse": "No hay ninguna empresa asociada a ese almacén",
+	"The web user's email already exists": "El correo del usuario web ya existe"
+}
diff --git a/loopback/locale/fr.json b/loopback/locale/fr.json
index 23bd5cc04..446c2ad0d 100644
--- a/loopback/locale/fr.json
+++ b/loopback/locale/fr.json
@@ -363,5 +363,6 @@
 	"It has been invoiced but the PDF of refund not be generated": "Il a été facturé mais le PDF de remboursement n'a pas été généré",
 	"Cannot send mail": "Impossible d'envoyer le mail",
     "Original invoice not found": "Facture originale introuvable",
-    "The quantity claimed cannot be greater than the quantity of the line": "Le montant réclamé ne peut pas être supérieur au montant de la ligne"
+    "The quantity claimed cannot be greater than the quantity of the line": "Le montant réclamé ne peut pas être supérieur au montant de la ligne",
+    "The web user's email already exists": "L'email de l'internaute existe déjà"
 }
diff --git a/loopback/locale/pt.json b/loopback/locale/pt.json
index f85afd607..4f68dfa53 100644
--- a/loopback/locale/pt.json
+++ b/loopback/locale/pt.json
@@ -363,5 +363,6 @@
 	"It has been invoiced but the PDF of refund not be generated": "Foi faturado mas não foi gerado o PDF do reembolso",
     "Original invoice not found": "Fatura original não encontrada",
 	"Cannot send mail": "Não é possível enviar o email",
-    "The quantity claimed cannot be greater than the quantity of the line": "O valor reclamado não pode ser superior ao valor da linha"
+    "The quantity claimed cannot be greater than the quantity of the line": "O valor reclamado não pode ser superior ao valor da linha",
+    "The web user's email already exists": "O e-mail do utilizador da web já existe."
 }
diff --git a/modules/client/back/methods/client/createWithUser.js b/modules/client/back/methods/client/createWithUser.js
index c8cd282e1..1d5e71fca 100644
--- a/modules/client/back/methods/client/createWithUser.js
+++ b/modules/client/back/methods/client/createWithUser.js
@@ -1,3 +1,4 @@
+/* eslint max-len: ["error", { "code": 150 }]*/
 const UserError = require('vn-loopback/util/user-error');
 
 module.exports = function(Self) {
@@ -98,6 +99,8 @@ module.exports = function(Self) {
             return client;
         } catch (e) {
             if (tx) await tx.rollback();
+            if (e.message && e.message.includes(`Email already exists`)) throw new UserError(`The web user's email already exists`);
+
             throw e;
         }
     };