diff --git a/lib/private/installer.php b/lib/private/installer.php
index 83649dd4181d0..a3b714d7b3e47 100644
--- a/lib/private/installer.php
+++ b/lib/private/installer.php
@@ -556,9 +556,12 @@ public static function installShippedApps($softErrors = false) {
 									if ($softErrors) {
 										try {
 											OC_Installer::installShippedApp($filename);
-										} catch (\Doctrine\DBAL\Exception\TableExistsException $e) {
-											$errors[$filename] = $e;
-											continue;
+										} catch (\OC\HintException $e) {
+											if ($e->getPrevious() instanceof \Doctrine\DBAL\Exception\TableExistsException) {
+												$errors[$filename] = $e;
+												continue;
+											}
+											throw $e;
 										}
 									} else {
 										OC_Installer::installShippedApp($filename);
@@ -585,7 +588,15 @@ public static function installShippedApp($app) {
 		//install the database
 		$appPath = OC_App::getAppPath($app);
 		if(is_file("$appPath/appinfo/database.xml")) {
-			OC_DB::createDbFromStructure("$appPath/appinfo/database.xml");
+			try {
+				OC_DB::createDbFromStructure("$appPath/appinfo/database.xml");
+			} catch (\Doctrine\DBAL\Exception\TableExistsException $e) {
+				throw new \OC\HintException(
+					'Failed to enable app ' . $app,
+					'Please ask for help via one of our <a href="https://nextcloud.com/support/" target="_blank" rel="noreferrer">support channels</a>.',
+					0, $e
+				);
+			}
 		}
 
 		//run appinfo/install.php
diff --git a/lib/private/updater.php b/lib/private/updater.php
index c1dbca24fe71e..1a0e2d85ad482 100644
--- a/lib/private/updater.php
+++ b/lib/private/updater.php
@@ -212,6 +212,10 @@ public function upgrade() {
 		$success = true;
 		try {
 			$this->doUpgrade($currentVersion, $installedVersion);
+		} catch (HintException $exception) {
+			$this->log->logException($exception, ['app' => 'core']);
+			$this->emit('\OC\Updater', 'failure', array($exception->getMessage() . ': ' .$exception->getHint()));
+			$success = false;
 		} catch (\Exception $exception) {
 			$this->log->logException($exception, ['app' => 'core']);
 			$this->emit('\OC\Updater', 'failure', array(get_class($exception) . ': ' .$exception->getMessage()));
diff --git a/settings/templates/help.php b/settings/templates/help.php
index f248abc066cce..954400d33b5d7 100644
--- a/settings/templates/help.php
+++ b/settings/templates/help.php
@@ -28,9 +28,8 @@
 
 	<?php if($_['admin']) { ?>
 		<li>
-			<a href="https://github.com/nextcloud/server/blob/master/CONTRIBUTING.md"
-				target="_blank" rel="noreferrer">
-				<?php p($l->t('Issue tracker')); ?> ↗
+			<a href="https://nextcloud.com/support/" target="_blank" rel="noreferrer">
+				<?php p($l->t('Getting help')); ?> ↗
 			</a>
 		</li>
 	<?php } ?>