Internal server error

A problem has occurred on our server!

Page is currently unavailable

We are working on a fix
Please come back soon ...

Error : TypeError: Argument 1 passed to ExtcalPerm::getAuthorizedCat() must be an instance of XoopsUser, string given, called in /www/htdocs/w00c30da/online/modules/extcal/class/event.php on line 2516

Backtrace: