Challenge Code reseted [SOLVED]

i start freecodecamp challenges a month ago and i stopped.
recently i start from the top and remark that our code is not saved, challenge’s validate but the code is reseted i don’t know why.
Is yours too ?

You can see your solutions on your profile page. The code in the challenge editor is loaded from local storage, so you probably cleaned it.

@BenGitter thank u i saw it and i am new forum user how can we make a subject solve

Hi, you have a ‘pen logo’ next to your topic title. You can add [SOLVED] there.
Have a nice day !

The best way is to mark a post as the solution. The button to do that is next to the like button. It looks like a checkbox.