I have lost all the previous answers

I have lost the answers to all the challenges that are marked as completed .So when i open them they start fresh even though i had already completed them before.
I have put many hours into them so I would really like to have them restored.
Please help.

If the challenge is checked that means it’s being saved.

There are two different types of saved progress for Free Code Camp: your profile and your browser cache.

Your completed challenges are all saved to your account in the FCC database. You can see the list of completed challenges and also the last submitted solutions by looking at your profile page.

Your in progress code is saved in your browser’s local storage. In-progress code is also saved in your local browser cache. Because FCC rolled out a completely new application, the old cached values are no longer valid. This is the same effect you would have if you cleared your browser cache. If lessons completed at learn.freecodecamp.org are never displaying in your editor, it is because something is preventing FCC from writing to your browser’s storage. This could be your browser, your privacy settings, or an application. Especially as you get to more complicated challenges that may take multiple sessions, I strongly recommend saving your in-progress work outside of the browser cache. This is a good opportunity to learn the ins and outs of your GitHub account, but you can also just save locally or use a service like repl.it which allows for versioning.

Sir i have an interview coming so i just wanted to refresh everything with the challenges and the answers that i wrote.
What should i do now. please help

You’re going to get a lot more value out of reviewing actually doing challenges instead of just reading your old solution. If, however, you just want to read solutions to FCC challenges, the Guide section of this forum contains several solutions for each challenge.

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Actually i did them myself only but i am logging in after quite a while now. this new addition is new to me also the name of the certificate has been changed in my portfolio.just needed some help on how to restore the answers if we can somehow.
Thanks for helping .

I understand that you did them yourself previously. I meant that in terms of reviewing for your interview you would get more benefit out of repeating the exercises than reading them, but if you want to read solutions you can.