LoL Friends App Clash Problem

I was using OP.GG to get hooked with a team for clash and I got invitations to join teams, but I couldn't accept them through the LoL Friends App. I can Accept friends (which I did), I can accept clans invite, but not Clash invites. When I finally got home from work and logged in at around 6:45 EST, you had disabled Clash and I couldn't join my team... which sucks, because now not only did I lose my chance to play clash, I also lost the consolation price of being ready to play clash, because your app didn't let me join my team... Can you guys do something about this? I feel robbed. :(