Problem to uninstall AirDroid: Unfortunately, Settings has stopped

When I try to uninstall the app I got this message: Can't uninstall because this package is an active device administrator. In the same window I have a button: MANAGE DEVICE ADMINISTRATORS When I follow this button I'm in Device administration settings. (normally you can reach it when you follow: settings -> Lock screen and security -> Other security settings -> Device administration settings) There are three items each of them have a switch on the side, which is turned on. When I try to unswich *AirDroid*, I got after some seconds the error message: Unfortunately, Settings has stopped. Also I'm not able to uncheck the other both items, but there is a different behavior. I try to solve this error by cleaning the cash with no effect. I like to remove the app because finally I don't need it and it consume a lot of battery even when I don't use it. I have a Samsung XCover 3 with Android 6.0.1 and Kernel 3.10.9