If you have recently received a message from Google Search Console Team stating that you need to Fix Breadcrumbs markup in your Joomla, here, you'll get instructions on how to download, install, test, and validate the fix for breadcrumbs markup issue.
The issue reported by GSC (Google Search Console) says that unless you fix the problems with the breadcrumbs, your Breadcrumbs pages might not appear as rich results in Google Search.
The original Joomla 3.9.11 breadcrumbs file does not support Google's guidelines correctly and has to be updated to fix the issues in your Google Search Console:
We provide two versions of the files for you to use.
The recommended one is version with the semantic HTML ,<nav> element instead of the <div> and with accessible support (aria-current="page" added to the last element in breadcrumb).
↓ Download: Breadcrumbs module fix (Google + HTML semantic element / WCAG) (1.84 kB 2019-09-23 22:59:51) (Unzip first)
The second version is based on the current core breadcrumb file from Joomla 3.9.11 (use this one if the first one does not work well with your template, for example, if the styling of the breadcrumb is different.)
↓ Download: Breadcrumbs module fix (Google) (1.81 kB 2019-09-23 23:02:42) (Unzip first)
See the video here: Fix Breadcrumbs issues in Joomla 3
ver.1.2 - fixed issue with the aria-label
ver.1.1 - fixed issue with the last item linked to the domain root
ver.1.0 - first release
Would you mind letting us know in the comments if it works fine for you? If you have issues, we'll try to fix them.