Airdroid Device administrator keeps disabling itself

Hello. I'm using Airdroid for a few months and I recently discovered the Find my Phone option. To use the feature, Airdroid needs to activate as device administrator, however it disables automatically everytime I switch off the phone. There is a way to fix this? Thank you.

Bump. I reinstalled Airdroid but the Device Administrator keeps de-activating automatically. I really need the Find Phone feature. Any help?