Hi Marsha,
Have you tried accessing your calendar using a different browser and/or via incognito window? If you purge your site’s cache, is the problem solved?
If you’ve followed all previous steps and the issue persists, could you please check if your site is using a CDN (content delivery network) like Cloudflare? If you are, please purge your CDN cache as well and check if the problem is solved after that.
If you have any other questions in the meantime please feel free to let me know and I’d be happy to help as best I can!
Regards,
Patricia