your saves were not lost, but they need to be moved to another folder. For some reason, when the version was updated, the game folder was changed (chat.kongregate.com -> game289226.konggames.com). Find the old saves by the name of the "PFEgame0.sol" file in "C:\Users\$username$\AppData\........" and move it to the new folder, where the new version of the game is stored.
 "FoE:Remains"){kind=icon}
 "KingsRoad"){kind=icon}
 "SAS: Zombie Assault 4"){kind=icon}
 "Anti-Idle: The Game"){kind=icon}
 "The Valley Rule"){kind=icon}
 "Upgrade Complete 3"){kind=icon}
your saves were not lost, but they need to be moved to another folder. For some reason, when the version was updated, the game folder was changed (chat.kongregate.com -> game289226.konggames.com). Find the old saves by the name of the "PFEgame0.sol" file in "C:\Users\$username$\AppData\........" and move it to the new folder, where the new version of the game is stored.