diff --git a/src/structure/components/com_sportsmanager/sportsmanager.php b/src/structure/components/com_sportsmanager/sportsmanager.php
index e5678b5..78f7976 100644
--- a/src/structure/components/com_sportsmanager/sportsmanager.php
+++ b/src/structure/components/com_sportsmanager/sportsmanager.php
@@ -5025,7 +5025,12 @@ function ranglisteAktualisieren($geaenderte_rangliste_id = 0, $geaenderte_turnie
 
     foreach ($ranglisten as $rangliste_index => $rangliste) {
         $rangliste_id = $rangliste->rangliste_id;
-        $rangliste->lizenzen = explode(',', $rangliste->lizenzen);
+        if(!isset($rangliste->lizenzen) || $rangliste->lizenzen == "" || $rangliste->lizenzen == NULL) {
+            $rangliste->lizenzen = NULL;
+        } else {
+            $rangliste->lizenzen = explode(',', $rangliste->lizenzen);
+        }
+
         $query = "SELECT *"
             . "\n FROM #__sportsmanager_rangliste_turnierdisziplin"
             . "\n INNER JOIN #__sportsmanager_turnierdisziplin USING (turnierdisziplin_id)"