Truth is, it's not broken. It still works for me til this day, without one problem.
Why?, because I have been through everything and I have taken the time to see how to fix it.
Here is a little list of ways to help it run:
1.) If it is installed on your desktop, take it down! That's what made it stop working for me at first.
2.) If you chose make sure logged in before sending and auto update encryption CHANGE IT BACK. Those also caused it to stop working for me,
3.) Make sure you update the encryption everyday! As silly as it sounds, mine stopped working once because I only updated it every few days.
Those are the tips I have that will help you fix it. These helped me and a lot others. Sorry if yours fits none of the above this is all I know, but feel free
to state your problem for others to help!