I've just installed the Calendar plugin, the calendar icon appears as expected but I receive an error "Server Error (Internal Server Error!)".
Originally when I installed the Calendar Plugin I forgot to also install jqueryui. At this point I did not have the Server Error. So I installed the jqueryui plugin and the error appeared.
I checked the errors log and found
"cannot access private property rcube_json_output::$config"
Any help would be much appreciated.
Phil
RoundCube v0.4.2