Version 4.3.6

applications/core/modules/setup/install/install.php

@@ -70,8 +70,7 @@ class _install extends \IPS\Dispatcher\Controller
 				}
 				catch( \Exception $e )
 				{
-					ob_start();
-					$backtrace = print_r( debug_backtrace( 0 ), TRUE );
+					$backtrace = $e->getTraceAsString();
 
 					$error = \IPS\Theme::i()->getTemplate( 'global' )->error( "Error", $e->getMessage() ?: "Error", $e->getCode(), $backtrace );