For possible permission problems in the apps folder:
There was a bug report and a fix:
but this was just applied to NC versions 28+. In your case, either ignore and check again on NC 28. Or try to delete duplicate entries. Since it is a user status, it is perhaps less critical.
Here you have the error already. I’d manually try to add the column, in the linked topic above, you’ll finde the commands.
After that, you should have less error. But if you look for the errors, you usually find plenty of topics to check.