Cant open the game

[poncho robledo]

I cant open the game, a window with this thing appears:

[TypeError, "incompatible marshal file format (can't be read) format version 4.8 required; 0.0 given [Section058:2133in 'oldload", Section058:2133in 'load", Section143:75in 'pbSetUpSystem' '', Section143:74in 'open' '',Section143:74in 'pbSetUpSystem' '', "Section143:227"]]

[JayCressTer]

i also have recently had this issue even downloading the new version?