Help after updating from ssh site goes down

Product Support Self-hosting
10

Already did still same;

git pull
Already up to date.

./launcher rebuild app
in end this shows up:

 ess 02:fc:33:3e:fd:f6 local_discourse/app /sbin/boot
589988dcb7e5e026f29b8af3b507e51a260e9de2f1ddfaea0620e1fbd2ea80e7
docker: Error response from daemon: OCI runtime create failed: container_linux.go:380: starting container process caused: process_linux.go:545: container init caused: sethostname: invalid argument: unknown.