I just installed the plugin via package manager. It gets installed successfully and I can access the configuration page of the plugin.
But the tab for page configuration is not showing up. Also it seems not to generate anything in the head section of my pages.
Weirdly it deletes the content attribute of my meta "description" tag. As soon as I deactivate the plugin everything works fine again.
These are my Grav versions: Grav v1.7.0-rc.14 - Admin v1.10.0-rc.14