Usage Direct doesnt work after update to V1.2

Usage Direct from F-Droid stopped to work after the update to V1.2 on my Sony Xperia Z2 Tablet.
Uninstalled it and then I found out it cannot be downloade again on thhis device.
Any suggestions how to fix this?
Or any other suggestions for App Monitoring Apps?

Haha, very funny!
Didnt work for three days and now that I posted it it is downloadable again.
Can be deleted, sorry…