[Critical issue] Backup of our user collection

Dear Adalo community,

Last night, by mistake, we duplicated our app by sharing the same database. The goal was to share our project with a freelancer. In the new copy app, we delete all of our user data (to protect sensitive data from the freelancer). However, this morning, we discovered that the data was also deleted in our main app !!

how could we back up the data, please?

Thanks in advance!