Okay, hope it's all right if I intervene, here...
I downloaded the game using an internet browser - a manual download, as opposed to the itch.io client. It installs and plays correctly, and the file that itch is failing to recognise is there and visible. I'm not entirely sure why itch's automated client is failing to parse it, if that's what's going on, but - if you've got a decent internet connection, that'll let you play the update.
Edit: Since you're playing on windows, it still won't run 100%. I believe I've solved the problem, but it requires editing a game file. The solution should be fairly easy to patch in, though!
Edit the second: Should be working now, LockedOn seems to have fixed it. Try updating, lemme know if it isn't working on your end!
Viewing post in Release XXV // Chapters 61 & 62 comments
Hmn... If you haven't tried uninstalling-reinstalling, do that.
Otherwise, go to your install directory (example: C:\itch.io games\methods\Methods-1.0-win\game\BGS\chap62 ) and try deleting everything there. Then, in itch.io's client, go to your library, right click on Methods, and either check update or uninstall/re-install.
yup it worked i was afraid if i was gonna uninstaling this game i would lose it since i got this before the price came it was free at first but i reinstall it again and all 62 chapters are there so it worked thank god now i hope i wont have any troubles when chapter 63 and 64 show up but for now problem is solved.