Borg: Failed to create/acquire the lock /lock.exclusive (timeout).
borg break-lock [repo]
Thanks to lfam on #borgbackup
You need to make sure there are no other backups running, and then use
borg break-lock
as described in the manual: https://borgbackup.readthedocs.org/en/latest/internals.html?highlight=break-lock#lock-files
You should check ps aux
or just restart to ensure borg is not still running