Thread border router issue installing Aqara P2

When attempting to install an Aqara P2 device I get the error below (On my phone). I thought all this time I had Thread/Matter. Actually, I’ve previously installed one Matter device. Anyway, I have many Zigbee devices already connected to my ZBT-2. Would I have to switch them to the Home Assistant Yellow’s internal Zigbee radio, then configure the ZBT-2 for Thread?

Switching from Zigbee to Thread support – Nabu Casa

Your devices need a thread border router
Connect your border router then
try setting up your device

Although for a different device, see if the following helps, especially the prerequisites section:

Thanks. But I prefer to use my ZBT-2 for Zigbee.

I don’t really understand your question … I mean whatever you’ve done involves adding Aqara as a Matter/thread device, not a ZigBee device.

The ZBT-2 can be configured for Zigbee OR Thread. I don’t want to re-configure the ZBT-2 as I use it for Zigbee. I have not done anything regarding installing the Aqara P2, since it requires a Thread border router.