I am currently attempting to print labels for products via the Retail Barcode Labels app, but whenever I click "Print Labels" I receive this error code. Not really sure where else to go from here. Updated my OS (macOS) and cleared cache in both Safar...

It does work like we described above. I have the collection on my homepage too. https://www.bricksandminifigsanaheim.com

THANK YOU @bredowmax ! I knew it had to be easy enough. Took me two minutes and didn't need an app! Thanks!