since the cb update 2.4.4 from 14.4.2020 our CB plugins need to be updated:
If you get such error notice:
Too few arguments to function cbTabHandler::getTabTitle(), 4 passed in /srv/www/vhosts/mysite.ch/httpdocs/components/com_comprofiler/plugin/user/plug_jemmyevents/jemmyevents_cb.php on line 157 and exactly 5 expected
the same line and error notice in jemmyattendees.php
you must change
Code:
getTabTitle($tab, $user, $ui, $postdata)
to
Code:
getTabTitle($tab, $user, $ui, $postdata, $reason)
and this in lines 145, 157 and 160
This is for JEM 2.2.3 too 
