Are you kidding me ? Multiple users are reporting the same issue in multiple threads. I lost my phone due to the same issue. Still nobody from your side accepts this issue ?
http://forum.avast.com/index.php?topic=122875.0 http://forum.avast.com/index.php?topic=118709.0 http://forum.avast.com/index.php?topic=123774.0 http://forum.avast.com/index.php?topic=123774.0