Bug in code editor

Hello everyone, recently for some reason when i toggled the editors of javascript html and css for the course of js they stopped working and now it only shows the introduction and the console without opening the code editors when i click them again. this happens not only in the js course but on everycourse since then, none opens. is there an issue or do i need to do anything? thank you.

try going to your settings and use the button to reset the editor layout