Upgraded Nextcloud by accident, now cannot run mailinabox anymore

Hello guys

I mistakenly upgraded Nextcloud manually from 20.0.8 to 20.0.14 and now the mailinabox commands aborts in the middle with this message:

Upgrading to Nextcloud version 20.0.8

An unhandled exception has been thrown:
OC\HintException: [0]: Downgrading is not supported and is likely to cause unpredictable issues (from to ()

I’m kinda stuck and all services are stopped. Cannot open Nextcloud anymore.

Any advice? Thanks.

Also try slack as that can be a slightly different set of eyes, and I’m guessing this is causing actual problems right now. (Unfortunately, I’m not much help for you on this one.)