#2913: Handle case where server_ip_address is None

src/primaite/simulator/system/applications/database_client.py

@@ -308,6 +308,8 @@ class DatabaseClient(Application, identifier="DatabaseClient"):
         """
         if not self._can_perform_action():
             return None
+        if self.server_ip_address is None:
+            return None
 
         connection_request_id = str(uuid4())
         self._client_connection_requests[connection_request_id] = None