There appears to be a null character in the line "you helped out it' s only fair you get to" for Map364.json for the "it's" word which is causing an error that results in a crash: "Uncaught SyntaxError: Unexpected token in JSON at position 39843". It's in Line 11 or the "id: 6" block. I've found by deleting this character (which looks like a space in Notepad++), resolves the issue. I'm not sure how you would resolve it in RPG Maker though.