Bad grammar, missing words, missing punctuation, missing capitalization. The text really needs work. Seems like all the pages I looked at had text related errors. Personally found it too distracting to finish, but it isn't unreadable. Must have been from google translate or someone not fluent in reading and writing English.
My suggestion is that if you're converting it from your native language you should type up the transcript then put it in an English grammar checking web page. Won't solve all the problems, but it should help.