Output Section Error

I didn’t log into my account for a few months and I just returned now. The website is showing me my progress, but when I try to continue the topics and answer the test and then run the test, the small output section in the bottom start showing “Running test” and stay like that and because of that I can’t move on to the next topic or check if my answer is correct or not. I tried to close and open the website several times and refreshed the page nut nothing changed.
Thank you!

I just registered and wanted to try these lessons. I have the same issue, Nothing happends when you click “Run the tests”. So cant really use the service.
Looking at the console there seems to be an script issue:
“SCRIPT5007: Unable to get property ‘next’ of undefined or null reference”

@moderators Is this a know issue that is corretly being worked on?