Glitch With /guild Attack

I tried to attack 'Nether Plains Upper' but when I attempted to do so, it merely stated 'No one logged in for the battle' even though me and Shadow3647 (both in the SaberTooth - SBT- guild) were in the territory. We did this at least 4 times before giving up.

EDIT:
The next day, I attempted to attack the same place again. This time me and Tomben1 were both teleported into server 'WAR60'. However, there were no mobs or NPCs - but there was the Guild Master in Cinfras upon further inspection. This happened again when I was on my own on Volcano Lower. Hmm.

 

Try switching worlds, it will work eventually

 

Thanks Hyprosis, I'll keep that in mind :)