Removing this plugin fixed my missing player after the upgrade
Have you tried to contact the plugin maintainer?
I am still trying to figure out the structure of Peertube and these repositories. I can see the plugin home page and there is an issue listed about this, but no reply. I see this on several plugins that people have questions and no response.
I wanted to put this here - because it took me quite some time to find that this was keeping v5 from working
Always sad to hear about plugin that seems to not be maintained