@Bimtronic use my backup/restore scripts yo save your MagicMirror setup
https://github.com/sdetweil/MagicMirror-backup-restore

then you can rename/delete the MagicMirror folder
and use my install script
see https://github.com/sdetweil/MagicMirror_scripts

and then use restore to put the MagicMirror configuration back

@Bimtronic Try MMM-CalendarExt3 instead of MMM-CalendarExt. MMM-CalendarExt is no longer maintained.