If you are getting a warning banner saying that
"We received an error from the Google Search Console API when inspecting some pages on this site. This usually occurs when the property is a URL prefix (like https:// or https://www) and the sitemap URLs don't match it."
Most of the time, it is that you have submitted a URL that either:
Is not part of your domain. If you have a domain called domain1.com, you can't submit for domain2.com unless you have ownership of it.
aren't a pure match with the ones in Google Search Console. Sometimes it might just be a http:// or https:// mistake or just a subdomain www. that is set differently from the sitemap and URL Monitor.
If you still have any issues with this. Please contact our Support team, and we will investigate the issue.