Can’t play Asguaard anymore

[myst5657]

I downloaded this game when it came out and it’s my absolute favorite rpg game. This is the message I get now when I try and play it. Any suggestions how to fix this

Crash detected, attempting to recover
If this error continuous to occur press and hold F8 to exit
TypeError: incompatible marshal file format (can't be read)
format version 4.8 required; 0.0 given
Section052:36:in load'
Section052:36:in update status*
Section052:20:in initialize'
Section086:34:in
new
Section086:34:in main'
Section086:33:in
each
Section086:33:in
main
Section243:86
OK