Saving an Event on the Info tab was spinning indefinitely. The web server logs showed this message: ``` PHP message: PHP Fatal error: Uncaught Error: Non-static method CRM_CivirulesActions_Participant_AddToZoom::getJoinUrl() cannot be called statically in /…/ncn-civi-zoom/ncn_civi_zoom.php:310 ``` So, adjusting the `getJoinUrl()` method to match. MR to follow.