Hello,
The Cache plugin is one of our community plugins, meaning that someone outside of the Snap Creator team created this plugin. The Snap Creator team does not qualify or support this plugin.
If there has been a change to Cache that keeps the plugin from working then a new version of the plugin may need to be created. This would require someone in the community to update the plugin.
Sorry I don't have more details.
You may be able to contact your account team and see if there is any way they can file a PVR or something similar to get the plugin updated.
Thanks