eRemote no connection e208

Good day, I haven’t been able to connect the vehicle to the eRemote since I bought it. Bluetooth connection in the car works and my rides also appear in the app. The remote control of the air conditioning or the battery charge does not work. eRemote Control stands on “in progress” for a 3/4 year. I have everything de/and installed several times, remains unchanged. The dealer pushes it to the app and the Peugeotservice on the telematics box. I don’t know what’s right, but I noticed that d the SOS lamp lights up in red permanently and both buttons show no function when I press them. I would like to check the battery of the Connect Box once. Can anyone tell me where it is? e205 Year of manufacture: 2020