Supervisor won’t start - system is not ready with state: setup | remove cifs share?

Hello,
i restarted my home assistant (proxmox based) and find out that the system did not start. in the console the error returned:

System is not ready with state: setup

tried banner
tried supervisor repair, reload … nothing helped.

then i got the next message:

can anybody tell me how to remove the cifs share? it is added in the gui to backup external.

tried mounts delete share_name doesn´t work
get always the respond message
System is not ready with state: setup

when i log into ha (console) the ip is reachable and under mnt is no share (confusing)

looks like the szstem is not responding to any command as long the system ist in state: setup

many thanxs in advance
regards Mike