All the URLs in your Sitemap are set to the same priority (not the default priority). Priority indicates the importance of a particular URL relative to other URLs on your site, and doesn't impact your site's performance in search results. If all URLs have the same priority, Google can't tell which are more important.
و متن بعدی :
When we tested a sample of the URLs from your Sitemap, we found that some URLs were not accessible to Googlebot because they contained too many redirects. Please change the URLs in your Sitemap that redirect and replace them with the destination URL (the redirect target). All valid URLs will still be submitted.