"invalid type" message

Can someone explain to me why I get this message? I have version 1.21 of the game, plus version 1.18 of Marla's map. Additionally I downloaded version 1.05 of the CPT yet after I save the game as "FIX.SAV" then hit the windows button and go to "Marla's world map mod", I get a message that says "invalid type".

I new to this so if someone could help me out I'd really appreciate it.

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You must replace v1.04 with v1.05. You are still calling the old CPT.exe