volodya is suggesting that the CRC check may only prevent the operation of a specific portion of the code and not JMP to an exit process of the code. In other words, your team is a man short, but still able to attempt to play the match.
Otherwise, it is most likely that you have one or more of the imports incorrectly identified and fixed and that is preventing all of the programs features from operating correctly, although it does run. Another possibility is that you forgot to adjust for the unpacking and the virtual vs physical addresses changes.
Regards,