From 74d73a9dc28fc608117c04da4652d43f633a72c5 Mon Sep 17 00:00:00 2001
From: Anton Tananaev <anton@traccar.org>
Date: Sun, 16 Jul 2023 08:02:56 -0700
Subject: Improve user check

---
 src/main/java/org/traccar/api/security/PermissionsService.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/main/java/org/traccar/api/security/PermissionsService.java b/src/main/java/org/traccar/api/security/PermissionsService.java
index 38bf48f30..7f5a46225 100644
--- a/src/main/java/org/traccar/api/security/PermissionsService.java
+++ b/src/main/java/org/traccar/api/security/PermissionsService.java
@@ -181,7 +181,7 @@ public class PermissionsService {
                 || before.getUserLimit() != after.getUserLimit()) {
             checkAdmin(userId);
         }
-        User user = getUser(userId);
+        User user = userId > 0 ? getUser(userId) : null;
         if (user != null && user.getExpirationTime() != null
                 && !Objects.equals(before.getExpirationTime(), after.getExpirationTime())
                 && (after.getExpirationTime() == null
-- 
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