[Snapshot] Need help with a site restore please

I’ve been trying to restore a Managed Backup but it keeps stalling, and we now can’t access the wp-admin due to that.

During a live chat session, we tried restoring the backup externally using the snapshot-installer script, but his a wall there as well: the installer won’t work as openbase_dir is enabled on the server.

We tried to set it to disabled in .user.ini & php.ini & wp-config.php, but no luck. I contacted my host then who said it can’t be disabled, so we tried setting a custom temp directory for Snapshot to use but cvouldn’t get that to work either.

Can you please help get this site restored?