So I'm running a 1.12.2 Spigot server on an amazon EC2 instance, to which I have SSH access. We're preparing the server for a public launch, so it never sees more than 3 persons online now. So, the problem: sometimes, after a server has been started, it would randomly kinda close the console and present me with the standard terminal prompt ([email protected]:~/). When someone executes a command, or writes something in chat, the console restores and i can see everything but i cant use any commands, it still gives me that "command not found" message and kick me out to terminal. The server still runs just fine, and every feature works, except console.