Everspring ST812

He everyone!

I have a few flood detectors from Everspring. I connected them to Homey using the plugin (https://apps.athom.com/app/com.everspring). But during connection they flash orange and after a while they stop. Homey shows the devices but they don’t receive the flood status and also battery status is always exactly 100%.

I tried contacting the developers as github but unfortunately no answer over there. Anyone got this working?