Cristian, there are two issues with the link.
1. There doesn’t seem to be a model there. When I click on the link I get a 404 error, meaning the server says there is no file on the server that is referenced by that link. (is there a typo somewhere?)
2. CODAP is typically loaded using a secure link, which means the URL starts with https:// (rather than http://), and it would need the URLs of the plugins (in this case your model) to also start with https. Many servers can do either URL. Hopefully, the one you use will allow secure links. If not, you might try changing the link you launch CODAP with to http://