Hi can you check that all pages reference both the .css and .js files as outlined in the link below and that those files have been uploaded to the server.
But the css & js files are not actually present in the location you have specified in the head, so they are 404 not found. Either correct the links to point to the location in the subdirectory where the store is located (removing the leading slash might also do it), or move the css & js folders to the root which is where the cart is looking for them at the moment
Peter
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