The information which you should get from my post is, that it is not your fault and that the application needs an update. The rest of my message is only for people who will understand and maybe try to pick up the problem and solve it. All others could ignore it. Next time I will write some more details to prevent confusions.

The attached files are patches of a different application, they show two version jumps which fixing=repair the last two changes from youtube api. The older patch was already solved from freemangordon the second patch needs to be integrated to qyoutube. Because cutetube2 uses qyoutube to communicate with youtube. When you have both patches and the changes from freemangordon you can get a clue where roughly in the source code you need to have a look to make changes.

What is a parser: https://en.wikipedia.org/wiki/Parser