I can't see comments under my videos

I have a YouTube channel and on mobile app shows I've gotten about 8 comments and I want to be able to talk to my viewers but odv I can't because studio doesn't even show where the comments are or what they are but that they are there. I used to see comments when I first started posting but now none show up but the number of comments go up. I'm just confused and wanna know how to fix it. 🙃