Hm – I’m not positive you guys are having the same issue.
@westerdaled – I’m not positive why that just showed up for you, but that’s a configuration issue on your server. The plugin is letting us know that your MySQLDump command is coming back with an “access denied” error when the plugin attempts to run the database part of the backup. It *should* fall back to the PDO:mysql option, though. You can check that out by running just a database-only backup and seeing if you are able to complete it successfully.
If the backup completes successfully then you can disregard this error. If it doesn’t – then you need to speak with your host to see whether the PDO:mysql command or the MySQLDump command can be available on your server for the plugin to utilize.
I’m leaving this topic open in case there are other issues, and so that @westerdaled can reply back with more details as well if needed.
Kat