Update failed from 1.11

[TS.ChrisR]

Make sure you did overwrite all files and did not miss any folder/file.
Then check that permissions for your user still fit to read/write in server folder.

Update / Upgrade a TS3 server

Here we explain how you can update your server in some simple steps. You have to stop the current server instance first. (Do not kill the process or else you will not be able to start your new server for the next 2-3 hours!)

Shutdown your server instance (Expand to get a how to for your operation system)

These are official supported ways. to shutdown the whole server. All ways will shutdown the whole instance and will report, that slots are not used anymore.``` * All operation systems: In t…