Hello, we had a little problem in backup. Backup are not deleted during nightly cron, but if we delete manullay all works fine. Any idea?
This is a known bug and will be fixed in 3.2.2. You can temporarily fix this with the changes from https://git.ispconfig.org/ispconfig/ispconfig3/-/merge_requests/1335 and https://git.ispconfig.org/ispconfig/ispconfig3/-/merge_requests/1336
Those are change sets, not files, so you need to make the same changes to your files, or copy all the files involved.
Yes the question was exactly this, if i can copy only this file - server/lib/classes/backup.inc.php - server/plugins-available/backup_plugin.inc.php the two files mentioned by ThOm
Yes, looks like there are only those two files involved in those merge requests, so download (eg. "raw" file link from gitlab) those to the same location on your server should do it.