Game breaking bug. Riot look

Hey I just want to let you guys know about a huge bug I found with the new patch. During champ select when I go to ban a champ. I will type in their name to find them faster but they won't pop up. I have every champ so it's not that. It happens for every champ I try to type In, not just a specific one. Also, when I go to ban(do you know the little tabs you can click on to categorize the tanks, supports ect.) If I click on one nothing shows up and every champ disappears and I can't ban. I've lost a lot of elo like this and I've been put on multiple 30 min. Wait timers. I've restarted client and repaired it but nothing. Just hoping to help some people out. Thanks!