Ensure you are running the required version of Zoom Rooms software in the Zoom Portal.
That means at minimum;
Zoom Rooms for Conference Room v4.6.2+ for Windows or MacOS
iPad, Android or Windows Tablet with v4.6.2+ Controller software
Next, the Whiteboard Camera feature must be enabled within the Zoom Web Portal.
Click on the Zoom Room in question, Edit the settings, and scroll down to near the bottom of the "Devices" section to find the "Whiteboard Camera" option.
Next, you will need to pair Kaptivo with a Zoom Room.