I just uploaded a fixed version – I got 2 crash reports from two users. It seems some Androids have different permission requirements – for example for setting the WiFi mode. So I had to add this one, and also the phone state permission. The 2nd one was my fault: it crashed when disabling all 4 schedule items (on, off, both for weekdays and weekends). Sorry for that 😐
So hit your update button in market and please allow the new permissions.