Xiaomi mihome Binding - cant find Motionsensor

I have a motion detector. I did not use it for a while and deleted it in Openhab. Now I wanted to use it again but the ID does not know anymore. He does not appear in the INBOX anymore. I have already deleted it in the MiHome app and newly trained, unfortunately without success!

Does anyone have an idea how I can create the motion detector again?

“You must activate the developer mode and in Hub Info, you must exit all the sensors with your ID…”

With this Info, i could create the item.