Howdy @lakehillschurch,
Welcome to our support forums and thanks for reaching out to us. I’ll help you out getting this right!
First of all, I can see the calendar is working in the URL you shared: http://newsite.lakehillschurch.org/newsite/events/ – Maybe you could fix the issue?
In case this is still failing please try to flush all caches (I see you have Super Cache plugin) and regenerate permalinks in WP-Admin > Settings > Permalinks > Save Changes.
Please let me know if this still an issue,
Best,
Nico