diff --git a/src/main/java/app/services/ExternalServices.java b/src/main/java/app/services/ExternalServices.java
index 26757f9..5727b56 100644
--- a/src/main/java/app/services/ExternalServices.java
+++ b/src/main/java/app/services/ExternalServices.java
@@ -48,6 +48,7 @@ public class ExternalServices {
     }
 
     public void update(String name) {
+        if (name == null || name.isEmpty()) return;
         services.put(name, Instant.now().getEpochSecond());
     }
 }
diff --git a/src/main/java/app/websocket/handlers/ExternalServicesHandler.java b/src/main/java/app/websocket/handlers/ExternalServicesHandler.java
index 6be2069..1118d72 100644
--- a/src/main/java/app/websocket/handlers/ExternalServicesHandler.java
+++ b/src/main/java/app/websocket/handlers/ExternalServicesHandler.java
@@ -37,7 +37,6 @@ public class ExternalServicesHandler extends TextWebSocketHandler implements Bas
     @Override
     @CheckWebAccess(auth_method = AuthMethod.SECRET_KEY)
     public void afterConnectionEstablished(WebSocketSession session) throws Exception {
-        logger.info("Session {} open", session.getId());
         super.afterConnectionEstablished(session);
         if (session.isOpen()) {
             logger.info("Session {} open", session.getId());