Antitheft app with personal name disappeared - no setup/reinstall possible

After the installation of the installer-app the freshly downloaded antitheft app came with a personalized name and told me to do some kind of back up so it would survive a hard reset. I wasn’t sure if my device (galaxy young) had a nand protection, so i left the menu to finish the set up later.

Now i cannot do anything! I do not find the app anywhere (only in the systems app list where i cannot uninstall it) and cannot finish the set up. Just before it was listed in the apps menu - suddenly it is gone!

The antitheft installer tells me “This device is already protected” and refuses service. :frowning:
My online avast account tells me “You don’t have any devices connected to your Account yet.” >:(

What can i do to complete setup? Or at least uninstall (galaxy young has not much internal storage)? Please help me.

Same to me :frowning:
I have installed the root AntiTheft and rebooted.

Now no icon, no app :frowning:
I don’t find it in Titanium Backup with my given name and can start it.

If I start the AntiTheft root again it will be again downloaded and installed.

In Mobile Security if I try to install the “non root” version I get it is installed but not “registered”.
If I try to uninstall within Mobile Security I get “it is not installed”.

Enter your Avast PIN as you would dial a number.

You should be able to solve your problems then.