- Quickfix from error found during PHP 8 migration

src/Routing.php

@@ -96,7 +96,7 @@ class Routing {
                             return $redirect;
                         }
 
-                        if ( $forbidden = $this->security->taxus($class, $method, $object->user) ) {
+                        if ( $forbidden = $this->security->taxus($class, $method, $object->user ?? null) ) {
 
                             return $forbidden;
                         }