Yeah I'm pretty sure VamXFan gave up on this. You'll have to roll back to a previous version of Vam For it to work. I can't recall what version though.
Another user ZHFX has developed a VR recorder but it's Patreon subscription based. It's a bit steep on the price but I can vouch that he is constantly making the plugins better and adding more. I'm always impressed with his updates, what is why I continue to support him.