Using the current plug in and noticed just the shortcode is showing up on the page now. On the backend (in WP) I see:
Simple Calendar could not be activated.
Required PHP Extension(s) not found: curl.
Please update to meet Simple Calendar requirements.
So I think maybe the plug in update requires CURL and I don't have it? It was working great when installed a year ago, but I guess it was updated and now I have this glitch?
Thanks so much!