Hi @sinustarsi! I’m really sorry this happened. 
It looks like, as the others have said, you versed a disbanded Guild so you can’t fight them. You can “skip” this for the day. Unfortunately, I can’t return your any Guild Wars points as we can’t reimburse or estimate potential progress. We have more information on this here. Best of luck in the next Guild War day. I’m sorry, I realise this is frustrating - I’ll follow up with the team and see if there is something that can be done for these situations in the future.