First of all thank you for the great work over the years, always a pleasure to use your awesome service!
I did face some kind of problem, my ranking are not shown in the guild bracket anymore:
You were not listed in a WCL-guild roster (https://www.warcraftlogs.com/guilds/characters/1309). Possibly, there was an issue during last sync process (last synchronized at Sun 26 Mar 2017 01:56:04 PM UTC) or someone edited roster manually (if such action possible)
I’ve clicked ‘update’ link (I hope, no one kill me for this ^.^), so guild rankings now show you again.