Thanks for the help, I tried that tutorial but unfortunately it did not work.
It's weird, I am using this plugin successfully on another site. On that site when I click Renew Cache or renew token, the page reloads or even takes me back to default settings page.
On the current page where the plugin is not working when I hit Renew Cache or renew token the page doesn't reload.
I checked the app settings and they are identical for the two apps. I'm thinking it has to be something due to the fact that the cache is actually not renewing..