I got the same file from Zillions-of-Games and got the same error as you did. I traced the error to a recent change I had made to the location of the temporary directory used for uploads. After I undid these changes and rebooted the server, the upload worked.
I got the same file from Zillions-of-Games and got the same error as you did. I traced the error to a recent change I had made to the location of the temporary directory used for uploads. After I undid these changes and rebooted the server, the upload worked.