http://www.quickandeasywebbuilder.com

I'm not sure this is the correct forum section to post this, so I apologize if it's wrong.

I am using QnEWB 2.2.2 and just tried to embed a video from my Vimeo account but it failed to play. It loads up on the preview site fine but a few seconds later it gives an error message. It says the player is having difficulties and they're working on it. My videos are playing fine on the Vimeo site. I suspect QnE Vimeo widget is at fault. Is there an upgrade or a workaround for this problem? I can't upgrade the QnEWB software to the newest version because my MacOS is too old (2015 MBP, MacOS10.9.5 (Mavericks). I may be able to upgrade to a newer version but I can't find system requirements anywhere. Any help will be greatly appreciated.

First note that version 2 is very old and no longer supported.
However, Vimeo has not changed over the last few years, so it should work.

Note that the player functionality is directly loaded from the Vimeo website so the only thing that can be wrong is the video ID.
Or maybe your browser's security settings block the video?