Whenever i go in champ select it wont let me lock in

Whenever i go into champ select it doesnt let me lock in my champ or ban and it doesnt even show me when my teamates are banning. My friend will tell me i queue dodged but im still in champ select. I've tried repairing my game files twice, going back to the legacy client, and even completely redownloading the game and i still have this issue. Rito help pls i just wanna get to gold. And also sometimes it wont even pop up the accept button for me.