diff --git a/db/routines/util/functions/midnight.sql b/db/routines/util/functions/midnight.sql
index c80abdbb0..b37415682 100644
--- a/db/routines/util/functions/midnight.sql
+++ b/db/routines/util/functions/midnight.sql
@@ -1,7 +1,7 @@
 DELIMITER $$
 CREATE OR REPLACE DEFINER=`root`@`localhost` FUNCTION `util`.`midnight`()
 	RETURNS datetime
-	NOT DETERMINISTIC
+	DETERMINISTIC
 	READS SQL DATA
 BEGIN
 	
diff --git a/db/routines/vn/functions/ticket_isTooLittle.sql b/db/routines/vn/functions/ticket_isTooLittle.sql
index 2ce24f0fa..bcbf09035 100644
--- a/db/routines/vn/functions/ticket_isTooLittle.sql
+++ b/db/routines/vn/functions/ticket_isTooLittle.sql
@@ -14,7 +14,7 @@ BEGIN
 	DECLARE vIsTooLittle TINYINT(1);
 
 	SELECT (SUM(IFNULL(sv.litros, 0)) < vc.minTicketVolume 
-			OR IFNULL(t.totalWithoutVat, 0) < vc.minTicketValue) INTO vIsTooLittle
+			AND IFNULL(t.totalWithoutVat, 0) < vc.minTicketValue) INTO vIsTooLittle
 		FROM ticket t
 			LEFT JOIN saleVolume sv ON sv.ticketFk = t.id
 			JOIN volumeConfig vc
diff --git a/db/routines/vn/procedures/ticket_setProblemRequest.sql b/db/routines/vn/procedures/ticket_setProblemRequest.sql
index a5dc31472..19bba5b76 100644
--- a/db/routines/vn/procedures/ticket_setProblemRequest.sql
+++ b/db/routines/vn/procedures/ticket_setProblemRequest.sql
@@ -13,7 +13,7 @@ BEGIN
 		ENGINE = MEMORY
 		SELECT t.id ticketFk, FALSE hasProblem 
 			FROM ticket t 
-				WHERE t.shipped >= util.midnight()
+				WHERE t.shipped >= util.VN_CURDATE()
 					AND (vSelf IS NULL OR t.id = vSelf);
 	
 	UPDATE tmp.ticket t
diff --git a/db/routines/vn/procedures/ticket_setProblemTooLittleItemCost.sql b/db/routines/vn/procedures/ticket_setProblemTooLittleItemCost.sql
index 4403292fc..cd1f42783 100644
--- a/db/routines/vn/procedures/ticket_setProblemTooLittleItemCost.sql
+++ b/db/routines/vn/procedures/ticket_setProblemTooLittleItemCost.sql
@@ -16,7 +16,7 @@ BEGIN
 			SELECT t.id ticketFk
 				FROM vn.ticket t
 					LEFT JOIN vn.sale s ON s.ticketFk = t.id
-				WHERE t.shipped >= util.midnight()
+				WHERE t.shipped >= util.VN_CURDATE()
 					AND (s.itemFk = vItemFk OR vItemFk IS NULL)
 				GROUP BY t.id
 		)SELECT ticketFk, ticket_isTooLittle(ticketFk) hasProblem