So, my server stops over and over and when I want to start it there's something about Failed to delete PID file or something and then it stops, what can I do?
Example:
Failed to delete PID file! Please delete it manually and make sure the process is not running anymore. Message: [Errno 30] Read-only file system: '/servers/109029.pid'
16:05 11:48:18 [Multicraft] server stopped
Times tried to delete the file as it stands there?
I do not know what file is meant.
There's some file. You search on the server and delete them.
Unfortunately, I do not know where this file is.
Where can I find the PID file? / What is the PID file?
Any file, I do not have access to your server.
I do not know how much you can see on files on the server. Since MCHost as far as I know managed servers are offered you have to look in the file system what is offered there (maybe via Filezilla or similar). If there's a folder called "servers" there's a high probability that it will be there, in which case just delete it. However, if the path is not reachable it only helps the support to write that they delete the file for you
This is clearly a mistake of mchost
Just write a support ticket and then do that.