diff --git a/src/js/index.js b/src/js/index.js
index 7d9e6e0eb..86f4e06df 100644
--- a/src/js/index.js
+++ b/src/js/index.js
@@ -190,6 +190,25 @@ var RSTATES ={
     RUNNING: 'running',
     STOPPED: 'stopped'
 };
+var ERROR = {
+    ACCESS_DENIED: 'Access Denied',
+    ALREADY_EXISTS: 'Already Exists',
+    BAD_FIELD: 'Bad Field',
+    COLLECTD_ERROR: 'Collectd Error',
+    CONFLICT: 'Conflict',
+    DATABASE_ERROR: 'Database Error',
+    DNS_ERROR: 'DNS Error',
+    DOCKER_ERROR: 'Docker Error',
+    EXTERNAL_ERROR: 'External Error',
+    FS_ERROR: 'FileSystem Error',
+    INTERNAL_ERROR: 'Internal Error',
+    LOGROTATE_ERROR: 'Logrotate Error',
+    NETWORK_ERROR: 'Network Error',
+    NOT_FOUND: 'Not found',
+    REVERSEPROXY_ERROR: 'ReverseProxy Error',
+    TASK_ERROR: 'Task Error',
+    UNKNOWN_ERROR: 'Unknown Error' // only used for portin,
+};
 
 app.filter('installError', function () {
     return function (app) {
@@ -397,34 +416,18 @@ app.filter('taskName', function () {
 });
 
 app.filter('errorSuggestion', function () {
-    // from boxerror.js
-    var ACCESS_DENIED = 'Access Denied';
-    var ALREADY_EXISTS = 'Already Exists';
-    var BAD_FIELD = 'Bad Field';
-    var COLLECTD_ERROR = 'Collectd Error';
-    var CONFLICT = 'Conflict';
-    var DATABASE_ERROR = 'Database Error';
-    var DNS_ERROR = 'DNS Error';
-    var DOCKER_ERROR = 'Docker Error';
-    var EXTERNAL_ERROR = 'External Error';
-    var FS_ERROR = 'FileSystem Error';
-    var INTERNAL_ERROR = 'Internal Error';
-    var LOGROTATE_ERROR = 'Logrotate Error';
-    var NETWORK_ERROR = 'Network Error';
-    var NOT_FOUND = 'Not found';
-    var REVERSEPROXY_ERROR = 'ReverseProxy Error';
-    var TASK_ERROR = 'Task Error';
-    var UNKNOWN_ERROR = 'Unknown Error'; // only used for porting
-
     return function (error) {
         switch (error.reason) {
-        case COLLECTD_ERROR: return 'Check if collectd is running on the server';
-        case DATABASE_ERROR: return 'Check if MySQL database is running on the server';
-        case DOCKER_ERROR: return 'Check if docker is running on the server';
-        case DNS_ERROR: return 'Check if the DNS service of the domain is running';
-        case LOGROTATE_ERROR: return 'Check if logrotate is running on the server';
-        case NETWORK_ERROR: return 'Check if there are any network issues on the server';
-        case REVERSEPROXY_ERROR: return 'Check if nginx is running on the server';
+        case ERROR.ACCESS_DENIED:
+            if (error.domain) return 'Check the DNS credentials of ' + error.domain.domain + ' in the Domains & Certs view';
+            return '';
+        case ERROR.COLLECTD_ERROR: return 'Check if collectd is running on the server';
+        case ERROR.DATABASE_ERROR: return 'Check if MySQL database is running on the server';
+        case ERROR.DOCKER_ERROR: return 'Check if docker is running on the server';
+        case ERROR.DNS_ERROR: return 'Check if the DNS service of the domain is running';
+        case ERROR.LOGROTATE_ERROR: return 'Check if logrotate is running on the server';
+        case ERROR.NETWORK_ERROR: return 'Check if there are any network issues on the server';
+        case ERROR.REVERSEPROXY_ERROR: return 'Check if nginx is running on the server';
         default: return '';
         }
     };
diff --git a/src/views/appstore.js b/src/views/appstore.js
index d18f2ff5d..d1d5a5043 100644
--- a/src/views/appstore.js
+++ b/src/views/appstore.js
@@ -181,8 +181,16 @@ angular.module('Application').controller('AppStoreController', ['$scope', '$loca
 
                 if (!data.overwriteDns) {
                     if (result.error || result.needsOverwrite) {
-                        $scope.appInstall.needsOverwrite = true;
-                        $scope.appInstall.error.location = result.error ? result.error.message : 'DNS Record already exists. Confirm that the domain is not in use for services external to Cloudron';
+                        if (result.error) {
+                            if (result.error.reason === ERROR.ACCESS_DENIED) {
+                                $scope.appInstall.error.location = 'DNS credentials for ' + data.domain + ' are invalid. Update it in Domains & Certs view';
+                            } else {
+                                $scope.appInstall.error.location = result.error.message;
+                            }
+                        } else {
+                            $scope.appInstall.error.location = 'DNS Record already exists. Confirm that the domain is not in use for services external to Cloudron';
+                            $scope.appInstall.needsOverwrite = true;
+                        }
                         $scope.appInstall.busy = false;
                         $scope.appInstallForm.location.$setPristine();
                         $('#appInstallLocationInput').focus();