diff --git a/src/translation/en.json b/src/translation/en.json
index 6a895dd09..8deeb1464 100644
--- a/src/translation/en.json
+++ b/src/translation/en.json
@@ -922,7 +922,8 @@
             "reportPlaceholder": "Describe your issue",
             "emailPlaceholder": "If needed, provide an email address different from above to reach you",
             "emailVerifyAction": "Verify now",
-            "emailNotVerified": "Your cloudron.io account email {{ email }} is not verified. Please verify it to open support tickets."
+            "emailNotVerified": "Your cloudron.io account email {{ email }} is not verified. Please verify it to open support tickets.",
+            "communityAppDisclaimer": "We only provide support via tickets for apps installed from the Core repository. Please ask in our forum instead."
         },
         "remoteSupport": {
             "title": "Remote Support",
diff --git a/src/views/support.html b/src/views/support.html
index ebdacd2fb..d66f8be3c 100644
--- a/src/views/support.html
+++ b/src/views/support.html
@@ -42,6 +42,9 @@
                 <option ng-repeat="app in apps" value="{{ app.id }}">{{ app.fqdn }}</option>
               </select>
             </div>
+
+            <p class="text-danger" ng-show="feedback.type === 'app_error' && appsById[feedback.appId] && appsById[feedback.appId].repository !== 'core'">{{ 'support.ticket.communityAppDisclaimer' | tr }}</p>
+
             <div class="form-group" ng-class="{ 'has-error': (feedbackForm.subject.$dirty && feedbackForm.subject.$invalid) }">
               <label>{{ 'support.ticket.topic' | tr }}</label>
               <input type="text" class="form-control" name="subject" ng-model="feedback.subject" ng-maxlength="512" ng-minlength="1" required ng-disabled="!subscription.emailVerified">
@@ -59,7 +62,7 @@
                 <input type="checkbox" ng-model="feedback.enableSshSupport" ng-disabled="!subscription.emailVerified"> {{ 'support.ticket.sshCheckbox' | tr }}
               </label>
             </div>
-            <button type="submit" class="btn btn-primary pull-right" ng-disabled="!subscription.emailVerified || feedbackForm.$invalid || feedback.busy"><i class="fa fa-circle-notch fa-spin" ng-show="feedback.busy"></i> {{ 'support.ticket.submitAction' | tr }}</button>
+            <button type="submit" class="btn btn-primary pull-right" ng-disabled="!subscription.emailVerified || feedbackForm.$invalid || feedback.busy || (feedback.type === 'app_error' && appsById[feedback.appId] && appsById[feedback.appId].repository !== 'core')"><i class="fa fa-circle-notch fa-spin" ng-show="feedback.busy"></i> {{ 'support.ticket.submitAction' | tr }}</button>
             <span ng-show="feedback.error" class="text-danger text-bold">{{feedback.error}}</span>
             <span ng-show="feedback.result" class="text-success text-bold">{{feedback.result.message}}</span>
           </form>
diff --git a/src/views/support.js b/src/views/support.js
index dc0beb17b..2250e37e7 100644
--- a/src/views/support.js
+++ b/src/views/support.js
@@ -10,6 +10,7 @@ angular.module('Application').controller('SupportController', ['$scope', '$locat
     $scope.config = Client.getConfig();
     $scope.user = Client.getUserInfo();
     $scope.apps = Client.getInstalledApps();
+    $scope.appsById = {};
     $scope.supportConfig = null;
 
     $scope.feedback = {
@@ -105,6 +106,8 @@ angular.module('Application').controller('SupportController', ['$scope', '$locat
                 Client.getRemoteSupport(function (error, enabled) {
                     if (error) return console.error(error);
 
+                    Client.getInstalledApps().forEach(function (app) { $scope.appsById[app.id] = app; });
+
                     $scope.sshSupportEnabled = enabled;
                     $scope.ready = true;
                 });