Remote Calling faillure

Hi.

I have installed Avast Anti Theft on a Samsung S4 Rooted.
The “Remote Calling”- function does,'t work anymore since I installed Skype on my phone. When I uninstall Skype from my phone, than the Remote Calling works again.

I guess it has something to do with the “defaults” in my phone. But I cannot find it.
Normally when he want to make a call than I can choose if I call with Skype or Phone “just once” or “always”
I guess this is the same with the Remote Calling-function, but the screen stays black , so I cannot give the command to the Remote Calling-function to take Phone “always”
What can I do to let the Remote Call-function works again, also when Skype is installed on my device?

Thx for your support.
Kind regards.
Mario