Can you check if the wp_xcloner_scheduler exists? If not, you might need to create it manually as here https://wordpress.org/support/topic/cant-create-schedule-backup/ and see if it helps
I have the same problem. I installed XCloner 4.2.161 on two new WP 5.5.3 websites.
Manual backup to my remote SFTP server works like a charm but when i try to create a schedule, i see a message stating that the schedule has been created but i don’t see it under schedules.
I checked for the table wp_xcloner_scheduler. This table is available.
I use XCloner on some other websites where i could create schedules in the past without any problem and these are still running fine.
Any suggestion?
I did some testing and found out that it was my own fault. I mixed up database passwords from both installs.
I found this by enabling WordPress debug.
Maybe it is a good idea to integrate a check on database connectivity in XCloner.
Also when the database credentials are wrong, the database is not backed up. But there is no warning as far as i was aware. So users may think they have i viable backup until they are restoring and find an empty database…
