So you get JavaScript error: initCustomMedia is not defined
Ordinary Internet wiseass will feed you bullshit about updating your Java. Well, Java and Javasctipt are completely different and independent things. You may completely remove Java from your system and still have sites using Javascript working. So, that basically means the problem is on the remote server side. Perhaps they are under maintenance or the webmaster just has his hands growing out of his ass. You can’t fix neither.