Fatal error: Uncaught Error: Class 'Jetpack_Sitemap_Buffer' not found in /opt/app-root/src/wp-content/plugins/jetpack/modules/sitemaps/sitemap-buffer-fallback.php:14 Stack trace: #0 {main} thrown in /opt/app-root/src/wp-content/plugins/jetpack/modules/sitemaps/sitemap-buffer-fallback.php on line 14