Update app/proprietary/src/main/java/stirling/software/proprietary/controller/api/ProprietaryUIDataController.java

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: Ludy87

app/proprietary/src/main/java/stirling/software/proprietary/controller/api/ProprietaryUIDataController.java

@@ -309,7 +309,9 @@ public ResponseEntity<AdminSettingsData> getAdminSettingsData(Authentication aut
                         userRepository.findByIdWithSettings(user.getId()).orElse(user);
 
                 // Mask mfaSecret if present in settings
-                Map<String, String> settingsCopy = new HashMap<>(userWithSettings.getSettings());
+                Map<String, String> originalSettings = userWithSettings.getSettings();
+                Map<String, String> settingsCopy =
+                        originalSettings != null ? new HashMap<>(originalSettings) : new HashMap<>();
                 if (settingsCopy.containsKey("mfaSecret")) {
                     settingsCopy.put("mfaSecret", "********");
                 }