Bug during Champion Select.

Soo, sometimes when I'm in champion select and I do the first selection of a champion, it won't let me move on to the ban selection. Then after however long it decides to stay glitched, usually after I fail to ban or choose a champion, it'll give me this error. I'm not really sure how to prevent this, but I've had to take a loss for numerous games because of this. Does anyone have any suggestions and is anyone experiencing the same thing?