Hello, saves are gone in the game. Can I restore them at the time of 04/dec/2020? Thank you in advance.  
epicgame
nickname: goodesigning
goodesigning@gmail.com

'Gone' (?) -have you manually deleted the files from your username AppData\Roaming\MudRunner\UserSaves-folder?
If not you have the latest progress thére as a <level>.sts file.
Examp. Deluge is named level_flood.sts
BUT!
At the exact moment you finish your last objective, and get that Level-finished screen, the *.sts file is automatically deleted!
I dont understand why they have done it that way, because some times its fun to return to a scenario, and try to do other things.
To avoid getting auto-delete, you mus cope the *.sts to a different directory, then you can insert it later, and choose to upload it to cloud.