Build Five Programs - can't reopen / continue my work

Tell us what’s happening:

Bash five programs. I can’t reopen my previous work, window with start new tutorial shows up. I have found information that I should copy my current files, press reset, paste them and it should work. Question - which files, only related directly with project (countdown.sh) or hidden files also (.freecodecamp, .git, etc.)? Same question which files to paste back after clearing project directory?

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Challenge Information:

Build Five Programs - Build Five Programs

GitHub Link: freeCodeCamp/curriculum/challenges/english/blocks/workshop-bash-five-programs/5f5904ac738bc2fa9efecf5a.md at main · freeCodeCamp/freeCodeCamp · GitHub

Welcome to the forum @symoniuk.krzysztof

I think the practice projects need to be done in one sitting.

Happy coding

Thank you @Teller , but the manual state something different:
“…If you have previously started the Build Five Programs course, go to your Codespaces to re-open a previous workspace.”

Continuing a previous course doesn’t always work.

Is there any way to check what this depends on? I tried to complete the course in one go, but it consists of over 200 tasks. After three hours, I had finished just under 70% when my connection dropped, and now I have to start all over again.