Error help me plss

I’m sorry my english is bad. I want to watch a movie I found on the internet with my friend, I pasted the link, he told me to install the w2g extension, so I installed it, but I’m trying to open the movie and I get the error you see in the picture.

Thanks a lot for your feedback. This is actually not an error message. When you use W2gSync The video is being played in a separate window. Do you see that window?