I had an interesting error on my site.
Site config
Plone 5.1.6 (5116)
CMF 2.2.13
Zope 2.13.29
Python 2.7.12 (default, Mar 1 2021, 11:38:31) [GCC 5.4.0 20160609]
PIL 6.1.0 (Pillow)
=================================================
Actions I took
I selected one user and selected "remove"
================================
Error Message
Traceback (innermost last):
Module ZPublisher.Publish, line 138, in publish
Module ZPublisher.mapply, line 77, in mapply
Module ZPublisher.Publish, line 48, in call_object
Module Products.CMFPlone.controlpanel.browser.usergroups_usersoverview, line 41, in call
Module Products.CMFPlone.controlpanel.browser.usergroups_usersoverview, line 193, in manageUser
Module Products.CMFPlone.controlpanel.browser.usergroups_usersoverview, line 228, in deleteMembers
NotImplementedError: The underlying User Folder doesn't support deleting members.
=======================
Any ideas?