To restore the library, use seaf-fsck.sh --repair. Initially, execute ./seaf-fsck.sh for a read-only check to identify any damage in the library. Subsequently, run ./seaf-fsck.sh --repair lib-ID to address and resolve any issues found.
Losing data from a Seafile library after a restart can be concerning. Here are steps you might consider to troubleshoot and potentially recover the missing data: