fix: Series.Creation.Validation-User.Create series with too large quantity

Author: php-coder

src/test/robotframework/series/creation/validation-user.robot

@@ -28,9 +28,10 @@ Create series with too small quantity
 	Element Text Should Be  id:quantity.errors  Value must be greater than or equal to 1
 
 Create series with too large quantity
-	Input Text              id:quantity  156
-	Submit Form             id:add-series-form
-	Element Text Should Be  id:quantity.errors  Value must be less than or equal to 150
+	Input Text                        id:quantity  156
+	Submit Form                       id:add-series-form
+	Wait Until Page Contains Element  id:quantity.errors
+	Element Text Should Be            id:quantity.errors  Value must be less than or equal to 150
 
 Create series with an empty image
 	Choose File             id:image  ${TEST_RESOURCE_DIR}${/}empty.jpg