@loes2911
The 404 errors you're seeing likely result from malformed URLs being crawled by Moz, where two URLs are combined incorrectly. Here’s how to address it:
Check Your Links: Review your site's internal links and sitemap for any improper URL structures.
Canonical Tags: Ensure each page has a proper canonical tag to prevent merging.
Redirects: Look into your redirect settings to confirm there are no misconfigurations.
Crawl Settings: Update your robots.txt file to manage how crawlers like Moz access your site.
I was facing the same issue on my site vnapp and solved it by following these steps.
If the issue persists, reach out to Moz for additional support.