JavaScript & HTML - Problems with web project

This post is the translation of a post I did in Spanish, I hope there are no problems with my english.

I'm doing a web project with HTML5 and JavaScript of random reproduction of YouTube videos (working on extracting data from JSon with Google's api and such).

I'm pretty stuck because I'm reusing parts of a web that I found with similar functionality, and although I made sure that all the references to the .js scripts were correct (because I saved this web locally) but for some reason that I can not understand, the web does not play the videos when it is launched, and I see a reproduction error in the Youtube player.

I was going to show you a piece of code from the html file that corresponds to JQuery functions and calls to other Scripts but it is something too ambiguous, so I attach the project (it's quite simple).

Link to download the project

The work is done (and therefore the error is found) in Index.html, specifically the section of JQuery and Javascript start on line 217. If someone was kind enough to run it in browser and give me some guideline or help I will be eternally grateful.