saves are gone

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

'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