Backup failing after migration

I have moved hosting from GoDaddy to SiteGround who did a great job migrating the website. However, the backup did not work and looking the in log file it is still attempting to access an old GoDaddy path (outside public_html) that does not exist now with SiteGround.

I deactivated and deleted Updraftplus and then reinstalled it but it has retained all the previous settings so the same problem still exists.

How can I do a full delete of Updraftplus and its data so I can then do a clean install?

https://www.ads-software.com/plugins/updraftplus/