Hello!
Please update the “System API” add-on to the latest version in the VitalPBX Addons module. Make sure to click Check Online to retrieve the most recent release.
Also, the latest version of VitXi is now available, you may proceed with the update: VitXi 4.6.0 – Major Release: Inboxes, WhatsApp/SMS, High-Performance Mode & More!
Best regards,