If you need to create your own breadcrumb for your website, you can either use a plugin for your platform or create it yourself.
There are plenty of articles out there to help you with this. You could also check Breadcrumb NavXT or Yoast SEO plugins. You may not want to do this yourself but, at least, as a website owner; it would be good to verify that your breadcrumbs are properly set on your site.
Here are a few links from Google where you will find detailed information regarding the code to be used on your breadcrumb. Take a look at the extra tags used and inspect your own website just to make sure that all is done
If you are using the Google Search Console, You will find Breadcrumbs warnings and errors under Enhancements > Breadcrumbs.
Don’t worry, we take care of this on our websites!