I added a field to the Users table. Then I created a customization project to modify the screen.
I published the project, and this field was visible to me. The field was called “JoinDate”.
I unpublished the project and deleted it from my instance. The screen has returned to its original state.
However, each time I get into users, I get this error on the screen. (Screenshot).

Where do I need to go to get rid of this field completely? I am trying to learn here, so the purpose of creating this field was to understand customizations.
Thank You!