[Q] Sabmobile and 4.1.2

For about one year I use Sabmobile on my Note. Ir worked fine. Since two weeks I upgraded from 4.0.3 to 4.1.2. Since a few weeks some problems with Sabmobile occured. My Note won't get awake. I have to reboot by holding the on/off button for a longer time. The icon Sabmobile does not work. It becomes a standard Android icon and when I use it, I get the message "not installed".
I restored my phone a few time, but the problem stays.
Is this a known problem?
What is the solution?