diff --git a/public/js/issues/plausichecks.js b/public/js/issues/plausichecks.js
index 1103528c5..449a12df2 100644
--- a/public/js/issues/plausichecks.js
+++ b/public/js/issues/plausichecks.js
@@ -4,8 +4,7 @@
 
 var Plausichecks = {
 
-	startPlausichecks: function(studiensemester_kurzbz, studiengang_kz, fehler_kurzbz)
-	{
+	startPlausichecks: function (studiensemester_kurzbz, studiengang_kz, fehler_kurzbz) {
 		FHC_AjaxClient.ajaxCallGet(
 			'system/issues/Plausichecks/runChecks',
 			{
@@ -14,21 +13,23 @@ var Plausichecks = {
 				fehler_kurzbz: fehler_kurzbz
 			},
 			{
-				successCallback: function(data, textStatus, jqXHR) {
+				successCallback: function (data, textStatus, jqXHR) {
+					if (FHC_AjaxClient.isError(data)) FHC_DialogLib.alertError(FHC_AjaxClient.getError(data));
+
 					if (FHC_AjaxClient.hasData(data))
 					{
 						let messageStr = "";
 						let messages = FHC_AjaxClient.getData(data);
-						
-						for (i = 0; i < messages.length; i++)
+
+						for (let i = 0; i < messages.length; i++)
 						{
 							messageStr += messages[i]+"<br />";
 						}
-						
+
 						$("#plausioutput").html(messageStr);
 					}
 				},
-				errorCallback: function(jqXHR, textStatus, errorThrown) {
+				errorCallback: function (jqXHR, textStatus, errorThrown) {
 					FHC_DialogLib.alertError(textStatus);
 				}
 			}
@@ -39,11 +40,10 @@ var Plausichecks = {
 /**
  * When JQuery is up
  */
-$(document).ready(function() {
+$(document).ready(function () {
 	// set event for adding a new Zuständigkeit
 	$("#plausistart").click(
-		function()
-		{
+		function () {
 			Plausichecks.startPlausichecks(
 				$("#studiensemester").val(),
 				$("#studiengang_kz").val(),