Fatal error: Uncaught Error: Class 'RankMath\Sitemap\Providers\Sitemap' not found in /home/lobsterinv/public_html/wp-content/plugins/seo-by-rank-math/includes/modules/sitemap/providers/class-author.php:108 Stack trace: #0 /home/lobsterinv/public_html/wp-content/plugins/seo-by-rank-math/includes/modules/sitemap/class-generator.php(169): RankMath\Sitemap\Providers\Author->get_sitemap_links('author', 200, 1) #1 /home/lobsterinv/public_html/wp-content/plugins/seo-by-rank-math/includes/modules/sitemap/class-generator.php(135): RankMath\Sitemap\Generator->build_sitemap('author', 1) #2 /home/lobsterinv/public_html/wp-content/plugins/seo-by-rank-math/includes/modules/sitemap/class-sitemap-xml.php(160): RankMath\Sitemap\Generator->get_output('author', 1) #3 /home/lobsterinv/public_html/wp-content/plugins/seo-by-rank-math/includes/modules/sitemap/class-sitemap-xml.php(147): RankMath\Sitemap\Sitemap_XML->build_sitemap() #4 /home/lobsterinv/public_html/wp-content/plugins/seo-by-rank-math/includes/modules/sitemap/class-sitemap-xml.php in /home/lobsterinv/public_html/wp-content/plugins/seo-by-rank-math/includes/modules/sitemap/providers/class-author.php on line 108