Server wird nicht mal mehr angezeigt

[08:35:14] [Server thread/INFO]: Starting minecraft server version 1.11
[08:35:14] [Server thread/INFO]: Loading properties
[08:35:14] [Server thread/INFO]: Default game type: SURVIVAL
[08:35:14] [Server thread/INFO]: Generating keypair
[08:35:14] [Server thread/INFO]: Starting Minecraft server on *:47952
[08:35:14] [Server thread/INFO]: Using epoll channel type
[08:35:15] [Server thread/INFO]: Preparing level "world"
[08:35:15] [Server thread/INFO]: Preparing start region for level 0
[08:35:16] [Server thread/INFO]: Preparing spawn area: 0%
[08:35:17] [Server thread/INFO]: Preparing spawn area: 26%
[08:35:18] [Server thread/INFO]: Preparing spawn area: 53%
[08:35:19] [Server thread/INFO]: Done (4.319s)! For help, type "help" or "?"
[08:35:19] [Server thread/INFO]: Starting GS4 status listener
[08:35:19] [Query Listener #1/INFO]: Query running on 0.0.0.0:57952
[08:36:02] [User Authenticator #1/INFO]: UUID of player riese53 is 3b0cafe5-5e97-4fc8-bcfd-cac87a8b3135
[08:36:02] [Server thread/INFO]: riese53[/62.91.74.42:51965] logged in with entity id 359 at (48.5, 64.0, 260.5)
[08:36:02] [Server thread/INFO]: riese53 joined the game
[08:36:06] [User Authenticator #2/INFO]: UUID of player Dumbledore001 is ff410311-97fc-470f-a313-e428cc5055e1
[08:36:06] [Server thread/INFO]: Dumbledore001[/91.3.33.232:60209] logged in with entity id 863 at (155.24937423128262, 76.15760090177669, 281.86846335556845)
[08:36:06] [Server thread/INFO]: Dumbledore001 joined the game
[08:36:20] [Server thread/INFO]: <riese53> hi
[08:36:24] [Server thread/INFO]: <Dumbledore001> Hi
[08:36:34] [Server thread/INFO]: <riese53> kann ich jetzt OP ?
[08:37:03] [Server thread/INFO]: [Dumbledore001: Opped riese53]
[08:37:12] [Server thread/INFO]: [@: Title command successfully executed]
[08:37:12] [Server thread/INFO]: [@: Title command successfully executed]
[08:37:14] [Server thread/INFO]: [@: Title command successfully executed]
[08:37:14] [Server thread/INFO]: [@: Title command successfully executed]
[08:37:27] [Server thread/INFO]: [@: Title command successfully executed]
[08:37:27] [Server thread/INFO]: [@: Title command successfully executed]
[08:37:28] [Server thread/INFO]: [riese53: Set own game mode to Creative Mode]
[08:37:40] [Server thread/INFO]: [@: Title command successfully executed]
[08:37:40] [Server thread/INFO]: [@: Title command successfully executed]
[08:37:44] [Server thread/INFO]: [@: Title command successfully executed]
[08:38:17] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 3732ms behind, skipping 74 tick(s)