Call to undefined method Communities::userIds()

in /live/UBI/handlers/UBI/welcome/response/content.php (6)

#0 /live/Q/platform/classes/Q.php(1310): UBI_welcome_response_content()
#1 /live/Q/platform/classes/Q.php(1174): Q::handle()
#2 /live/UBI/handlers/Q/response/content.php(22): Q::event()
#3 /live/Q/platform/classes/Q.php(1310): Q_response_content()
#4 /live/Q/platform/classes/Q.php(1174): Q::handle()
#5 /live/Q/platform/classes/Q/Response.php(99): Q::event()
#6 /live/Q/platform/classes/Q/Response.php(191): Q_Response::fillSlot()
#7 /live/Q/platform/handlers/Q/response.php(236): Q_Response::fillSlots()
#8 /live/Q/platform/classes/Q.php(1310): Q_response()
#9 /live/Q/platform/classes/Q.php(1174): Q::handle()
#10 /live/Q/platform/classes/Q/Dispatcher.php(599): Q::event()
#11 /live/Q/platform/classes/Q/Dispatcher.php(476): Q_Dispatcher::response()
#12 /live/Q/platform/classes/Q/WebController.php(48): Q_Dispatcher::dispatch()
#13 /live/UBI/web/index.php(13): Q_WebController::execute()
#14 {main}