The problem is commonly caused by the SSH server not being able to launch some necessary process, like SFTP server or user shell. You may see an actual reason in your SSH server log.

I try to log in as normal for access to my home pc, but get this error message

Authentication log (see session log for details):
Using username "gamesys".

Connection has been unexpectedly closed. Server sent command exit status 0.

any idea why this is happening. nothing has changed since i last logged in and i had no problems then?

thanks