Argh that’s annoying. Sorry about that.
If you notice a problem when you open (or try to open) a certain page on Cambly while using the Google Chrome web browser, then there's a lot of helpful information you can send us to help us fix the problem ASAP!
While you're on that Cambly page with the problem, just follow the steps here to display all the errors you're receiving.
While you wait for a response you can try to solve the problem by clearing your cache and cookies.