As mentioned in my earlier post, these logs showed a deadlock/lockout that led to the server becoming inaccessible.
I have sent you a development build 1.28.1.5978-004356b0e which has a fix for a compiler bug that affected windows platforms. Could you run with this version and if you do get a lockout - like that which happened on 12th July between 17:40 and 20:09, please collect the diagnostics outlined here: