Hi,
There a bug with the 'close my account' option in pvt/home.
Basically when you do this as non-admin it fails due to lack of permissions on group::add_member
This has been introduced by the fix for bug 1468
https://openacs.org/bugtracker/openacs/bug?bug%5fnumber=1468
I've added a comment that bug, but it needs re-opening.
The fix I've used for now is to use the -no_perm_check option on group::add_member.