You are using the Generic (GBM/V4L2) image which does not support Hyperion. You would need to crossgrade to the Generic-Legacy image which still uses X11 windowing. Crossgrade will require you to uninstall any binary add-ons that depend on OpenGLES, then clean the local package cache, before 'updating' to Generic-Legacy and reinstalling OpenGL compatible versions.
In the long-term the X11 image will be discontinued (GBM is the future technical direction) so you might want to think about adapting your Hyperion setup to use an external HDMI grabber.