I get the same problem as Zarzal above where I just see a dash in the primary settings of cp, but I can go into it anyway.
When I save changes, I get
An error has occurred:
Undefined subroutine &main::set_vars_chat called at cp.cgi line 342.
Backtrace: cp.cgi:342 -> sub UBBCGI::Carp::die
Backtrace: Carp.pm:82 -> sub UBBCGI::Carp::fatalsToBrowser
Backtrace: Carp.pm:146 -> sub main::StandardHTML2
Backtrace: cp_lib.cgi:130 -> sub main::Tracer
I've done it more than once. I do have my key upgraded and have used the chat mod for quite a while.