Zedstrokes

Hi, I downloaded the Hatsukoi 1/1 files, mounted the disc 1, unmounted it when it told me it needed the disc 2, mounted the disc 2 and I finished the download. I extracted the english patch to the folder and tried to start up the game and I got this. Thanks for the help

So I mount disk 1, run the setup etc. and it starts downloading. Normally, at this point there would be a message saying you need disk 2, the problem is that instead it says that mail_3frm.gan is missing and then closes the app. It does this every time I try to download it. I even checked in my hatsukoi files that I downloaded online and I HAVE mail_3frm.gan, so I don't know how to fix it. Thanks for your help.