Is your Shopify widget loader "stuck"?
Please check that you're not excluding collections that include others.
For example: Mary has a site and has a collection named "European Artists". She decides to exclude that collection but includes the collection "Pablo Picasso". Since "Pablo Picasso" is a collection within "European Artists", the widget will get confused and never load.
Please make sure to test the widget without excluding anything, to see if it works.
If you're not excluding collections or this situation does not apply to you, you might be experiencing compatibility issues. Some Shopify Themes present incompatibilities with the ArtPlacer widgets. We can build compatibility for you free of charge. Contact us to have this done.
Please bear in mind compatibility building make take up to one week. Your ArtPlacer trial can be extended free of charge for this purpose.