ssh - interactive shell is not available

(1) If I try to connect via ssh to “user,project@shell.sourceforge.net, I always get the info “Your shell is shutting down. Please try again later.” The shell was working well until 29.05.2026 11:15:00. The shell is currently used every 15 minutes to automatically maintain some project (assp) mysql tables and to create some project download files which contain some consolidated data (for much more than a decade now).