Please do not report any of these issues to this thread anymore since the problem is already quantified by me and I am trying to address the root cause. The problem is intermittent and when it happens, I can fix it by repairing certain tables in the database.
If you notice this problem, you can Skype me at michaelaivaliotis with a short message stating that LAVA is down. I will then promptly fix it. But don't expect a response on Skype acknowledging receipt of the message. You will just see LAVA work again.