Logged into this site.
The problem is that you have WordPress and non-WordPress database tables / table prefixes. See the attached Excel spreadsheet that I sent to you via email. BPS Pro DB Backup is designed specifically for WordPress and will work to backup other DB tables for 3rd party applications, BUT the db table prefix name would need to be the same as your WordPress database table prefix: xxxxxxxx_
I do not think you can just rename the database tables without also changing the database table name in your 3rd party applications.
I was able to successfully create a manual WordPress DB backup by ONLY selecting ONLY WordPress database tables and not any of the other non-WordPress database tables.
So your options are:
• Either manually change your 3rd party application database table prefix names in your database and in the 3rd party applications
• Only backup WordPress database tables and NOT the 3rd party database tables.
Recommendation:
I recommend that you create an automated scheduled backup for ONLY WordPress database tables by creating a backup job that is only backing up WordPress database tables. Do a standard phpMyAdmin Database backup for all of your other 3rd party application database tables since adding the additional code that would be necessary for your 3rd party applications to use the WordPress database table prefix would require mid-level coding knowledge.