Sending a message gives me "session expired"

[EmilyTheEgg]

I'm running this as a tor hidden service, and whenever I try to send a message, it gives me "session expired" so I click "reaload postbox" and it does the same thing, same with updating staff notes, but not changing the settings. The issue persists if I connect to it from LAN (not with tor). Am I doing something wrong? I have enabled encryption and memcached and I'm using SQLite.

[EmilyTheEgg]

I disabled message encryption and its working fine. Can someone tell me what I did wrong? Is this a bug? Is there some format that the encryption key has ti be in? I just set it to 32 random numbers.