Do you mean the notifications number keeps showing? This glitch was in the program for a long time. Try this. Go to your notifications. At the bottom, click to show more. Go all the way through the list before returning to the main page. That usually works.
PLEASE HELP ME how do you delete a notification on blurtit??? I posted the longest word in english and it's messing it up!!! HELP
Have you tried refreshing the page?
I just went on my notification page, and it's gone. Yay!!! :)