Comment to Update 12.1.0 -> 13.0.0 won't start
-
You run version 12 on php 8. version 12 doesn't support php 8. Just looked it up in the Docs. https://una.io/wiki/Requirements
That might be the reason for the failing upgrade.
Comment to 'Update 12.1.0 -> 13.0.0 won't start'