World Cup Database Data Dissappear

Tell us what’s happening:
Describe your issue in detail here.

Please help! how to reset the project? I got disconnect while doing this project and now all the files are missing! is there a way to recover the lost files? Refreshing the page does not bring the file back.

Your code so far

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/ Safari/537.36

Challenge: World Cup Database - Build a World Cup Database

Link to the challenge: