🇺🇸United States @TechNikh

The patch at https://www.drupal.org/project/group/issues/3399452 🐛 Error: Call to a member function getPluginId() on null in modules/contrib/group/src/Entity/Storage/GroupRelationshipStorage.php on line 93 Active worked for me.
https://www.drupal.org/files/issues/2023-11-06/group3-3399452-4.patch →

> >  [notice] Step 2 of 8 (Copy data): Copied data. Processed to save the new configurations.
> >  [notice] Step 3 of 8 (Replace new bundle in group relationship table): Replacement completed
> >  [notice] Step 4 of 8 (Updates the target type of Entity Reference fields): Process finished.
> >  [notice] Step 5 of 8 (Remove old configurations): Process finished.
> >  [notice] Step 6 of 8 (Update entity definition installed): Process finished.
> >  [notice] Step 7 of 8 (Update views configuration): Process finished.
> >  [notice] Step 8 of 8 (Final Step): Congratulations, you upgraded the module Group!. Now you can uninstall this module.
> >  [notice] Update completed: group2to3_update_9001
>  [success] Finished performing updates.
 [success] Config import start.

Thanks Michael. I just made you co-maintainer. Let me know if you have any questions.