data-vocabulary.org schema deprecated

Hi, I’ve had the below error notification from google, would this have anything to do with your plugin? Thanks, hope you can help

Search Console has identified that your site is affected by 1 Breadcrumbs issues:

Top Warnings

Warnings are suggestions for improvement. Some warnings can affect your appearance on Search; some might be reclassified as errors in the future. The following warnings were found on your site:

data-vocabulary.org schema deprecated

We recommend that you fix these

The page I need help with: [log in to see the link]