I CANT BUY ANY CHAMPIONS AT ALL!!! PLS FIX.

After picking my champion from the starting carousel, I used it for the first round and then before the second round I sold it for 2 gold. The problem is that after selling it instead of showing me the store it keeped showing me the "sell this champion for 2 gold" thing and when i press on it nothing happens, I waited for more rounds with the hope that will get fixed, but no, it didnt so I insta-losed the game because i coulndt buy any champions at all.

Here is proof: https://imgur.com/a/XibmmwA (click on the image for better quality)