diff --git a/src/main/java/hhn/labsw/bugageocaching/controller/Controller.java b/src/main/java/hhn/labsw/bugageocaching/controller/Controller.java
index 881ddfc..13d1bb9 100644
--- a/src/main/java/hhn/labsw/bugageocaching/controller/Controller.java
+++ b/src/main/java/hhn/labsw/bugageocaching/controller/Controller.java
@@ -1325,6 +1325,11 @@ public class Controller {
 
       User deleteUser = userRepository.findByEmail(username);
 
+
+      if(deleteUser == null) {
+        return ResponseEntity.status(400).body("Es wurde kein User mit dieser Email gefunden.");
+      }
+
       User_Info user_info = user_infoRepository.findUser_InfoByUser(deleteUser);
       user_info.setRankingPointsSum(0);
       user_infoRepository.save(user_info);