diff --git a/src/structure/components/com_sportsmanager/sportsmanager.php b/src/structure/components/com_sportsmanager/sportsmanager.php
index 4e71fb0..7f166fd 100644
--- a/src/structure/components/com_sportsmanager/sportsmanager.php
+++ b/src/structure/components/com_sportsmanager/sportsmanager.php
@@ -71,7 +71,7 @@ if ($task == "spielerbild") {
     terminDokument();
 } else if ($task == "spieler_details") {
     spielerDetails();
-} else if (str_starts_with($task, "admin_")) {
+} else if ($task !== null && str_starts_with($task, "admin_")) {
     // in some cases there are no breaks needed due to no return from method
     switch ($task) {
         case 'admin_einstellungen':