Conbee II Stick Addon vanished


I installed Mozilla IOT in a Docker Container today and everything is working so far, but I can’t find the Conbee Addon in the addon list anymore. Was it removed? Or do i now need to plug it directly in my server?
About a month ago i have seen/used it with my Raspberry configuration.

Thanks in Advance!

That add-on was obsolete and unmaintained, so it was removed. The Conbee stick is directly supported by the official Zigbee add-on, so you only need to install that. You will need to plug your Conbee directly into your Raspberry Pi (or whatever your gateway is running on).