Having trouble getting my Facebook store to display properly

It shows the homepage correctly but when I navigate anywhere the entire site breaks down as though the CSS isn't being processed or something. I can send pictures.

Thanks,
Scott

I'm getting the following in the console:

HTTP404: NOT FOUND - The server has not found anything matching the requested URI (Uniform Resource Identifier).
POST - https://www.otisbjewelry.com/facebook/shop/

Configuration error on my part...please disregard.

Ok,

No problem. Let us know if you need any help !