Issue with scenario

[zap]

Playing Iceland scenario.

My opponent cant open turn three. Previous turns he was able to open. 
He has played his scenario with others and has not had the issue.
I've played others never had a problem like this with other scenarios

So what could it be? corrupted scenario file? 
I just recently installed MS11
Tried sending it zipped and unzipped.
He gets an error message that would indicate I did not end the turn. 
However I did end the turn. Because I cant open it either.