08904ba8__in_Ruby__Python_and_C_Clients__What_should_the_client_do_
[Error Code Received] LCB_SERVER_BUG [What does it mean?] Unexpected usage of server protocol caused unexpected results. [What should the client do?] 
Result set should be discarded and not used. The developer should record his/her steps to reproduce the issue and file a bug.
Handling Runtime Errors in Ruby, Python and C Clients
What should the client do?