Fix copy-paste error message typo

AccessQueueService/Services/AccessQueueSerializerService.cs

@@ -34,7 +34,7 @@ namespace AccessQueueService.Services
                 }
                 catch (Exception ex)
                 {
-                    _logger.LogError(ex, "Exception occurred during background cleanup.");
+                    _logger.LogError(ex, "Exception occurred while trying to write state in background backup service.");
                 }
                 await Task.Delay(backupIntervalSeconds, stoppingToken);
             }