the directory for the saves are specified in many scripts of renpy and python, so if you changed their location by creating a subfolder in the original location, the game won't find them, since it doesn't know about said folder. try moving them into -as you said- /renpy/saves/lucky.paradox out of the folder you created. then restart the game and see if they are visible. if not, details of what you already did and tried, or changed could help too