The problem is not with a challenge but with the site of freeCodeCamp.
I made challenges in the JavaScript section and I’ve made it to the Intermediate Algorithm Scripting course. When I made first two challenges there was no problem but when I got to the third one the problem occured.
When I type code in the input section and I make a syntax error the output window shows the error and then the window would never change until I reload the page. This is really annoying because when I type something like "let b = " the window already takes that as an error and I can’t track my progress of completing a task so everytime I have to reload the page. Also the problem occurs when I want to write an if-else block or some loop or multi-linear comment.
I already cleared cookie but that didn’t help.