Fix issue when showing exception

diff --git a/wcfsetup/install/files/lib/core.functions.php b/wcfsetup/install/files/lib/core.functions.php
index 8b1b80639854ff46093e7e7cd86337352c4a6d63..58c01b9f2b08e82a48f0c2eb06fb9763a5b6ee22 100644 (file)
--- a/wcfsetup/install/files/lib/core.functions.php
+++ b/wcfsetup/install/files/lib/core.functions.php
@@ -494,6 +494,7 @@ EXPLANATION;
                        if (!isset($item['line'])) $item['line'] = '?';
                        if (!isset($item['class'])) $item['class'] = '';
                        if (!isset($item['type'])) $item['type'] = '';
+                       if (!isset($item['args'])) $item['args'] = [];
                        
                        // strip database credentials
                        if (preg_match('~\\\\?wcf\\\\system\\\\database\\\\[a-zA-Z]*Database~', $item['class']) || $item['class'] === 'PDO') {