CodeIgniter Bootstrap Error

Error: Can't find a route for 'GET: sitemap.xml'.

File: /var/www/html/dms.biomediscan.com/system/CodeIgniter.php (Line: 1001)

Stack Trace:

#0 /var/www/html/dms.biomediscan.com/system/CodeIgniter.php(1001): CodeIgniter\Exceptions\PageNotFoundException::forPageNotFound()
#1 /var/www/html/dms.biomediscan.com/system/CodeIgniter.php(346): CodeIgniter\CodeIgniter->display404errors()
#2 /var/www/html/dms.biomediscan.com/system/Boot.php(417): CodeIgniter\CodeIgniter->run()
#3 /var/www/html/dms.biomediscan.com/system/Boot.php(68): CodeIgniter\Boot::runCodeIgniter()
#4 /var/www/html/dms.biomediscan.com/public/index.php(73): CodeIgniter\Boot::bootWeb()
#5 {main}

To debug this issue:

1. Upload and run debug.php in your server root
2. Check file permissions and paths
3. Verify PHP version compatibility
4. Check .env file syntax