The codes / script for the FH calendar haven't changed at our end
The calendar script can be copied from the dashboard by choosing the Embedded Calendar option. https://fareharbor.com/carolinahistoryandhaunts/dashboard/settings/embeds/
 
Unfortunately this is a limitation of the Wix CMS and the way they render javscript - Only the Wix sites have been affected, we havent had any issues with other CMS. The workaround we recommend is to use buttons with links to relevant items - the buttons will also lightframe. The buttons can also be linked directly to the calendar without the description for eg. https://fareharbor.com/embeds/book/carolinahistoryandhaunts/items/10328/?flow=19397


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This is an issue with Wix and we recommend not adding any of our Grid or Calendar embeds to wix sites because of this. We cannot change or resolve this at our end as Wix itself sees these types of embeds as entirely separate and changes their link codes in a way we cannot get around. We advise to  use buttons that link to the flows.