Cant see a notification anymore

I was very recently browsing youtube and decided to check my notifications. I saw a notification about a reply to a comment I made, However when I went to click on it it didn't work. I also tried refreshing but now I cant find the notification anymore. I really want to see the reply and now I dont know how to get back to it and I dont know how. The replies notification thingy is on and it was there, but now its just gone. Please help