Shelly Plug S & 1PM mini is not recognized by the HA

Hello everyone,
Unfortunately I am unable to integrate my Shelly devices, e.g. Shelly Plug S (GEN2) and also my Shelly 1PM mini (Gen 3) into my HA.
I was able to install both devices normally via the Shelly app, they can also be controlled, but when I want to integrate the whole thing into the HA, it unfortunately doesn’t work. I searched the forums for a long time and tried a lot, but somehow my HA doesn’t recognize the devices. But I also have the window contact from Shelly, which was recognized in the HA and runs via the BT Home integration.
My HA runs on a Rasberry Pi5, Shellys are in the same network as my HA.

I would be very grateful for some advice.

best regards
Alen

Are you using ShellyForHass custom integration or core Shelly integration?

ShellyForHass

And this is a reason. ShellyForHass has been dead for a few years. You should migrate to the core Shelly integration.