Fatal error: Uncaught Error: Failed opening required '/home/mubasher/public_html/wp-admin/includes/file.php' (include_path='.:/opt/cpanel/ea-php82/root/usr/share/pear') in /home/mubasher/public_html/wp-content/plugins/seo-by-rank-math/includes/helpers/class-wordpress.php:644 Stack trace: #0 /home/mubasher/public_html/wp-content/plugins/seo-by-rank-math/includes/modules/sitemap/class-cache.php(51): RankMath\Helper::get_filesystem() #1 /home/mubasher/public_html/wp-content/plugins/seo-by-rank-math/includes/modules/sitemap/html-sitemap/class-sitemap.php(49): RankMath\Sitemap\Cache->__construct() #2 /home/mubasher/public_html/wp-content/plugins/seo-by-rank-math/includes/modules/sitemap/class-sitemap.php(54): RankMath\Sitemap\Html\Sitemap->__construct() #3 /home/mubasher/public_html/wp-content/plugins/seo-by-rank-math/includes/module/class-manager.php(487): RankMath\Sitemap\Sitemap->__construct() #4 /home/mubasher/public_html/wp-content/plugins/seo-by-rank-math/includes/module/class-manager.php(467): RankMath\Module\Manager->load_module('sitemap', Object(RankMath\Module\Module)) #5 /home/mubasher/public_html/wp-includes/class-wp-hook.php(324): RankMath\Module\Manager->load_modules('') #6 /home/mubasher/public_html/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters(NULL, Array) #7 /home/mubasher/public_html/wp-includes/plugin.php(517): WP_Hook->do_action(Array) #8 /home/mubasher/public_html/wp-settings.php(682): do_action('after_setup_the...') #9 /home/mubasher/public_html/wp-config.php(66): require_once('/home/mubasher/...') #10 /home/mubasher/public_html/wp-load.php(50): require_once('/home/mubasher/...') #11 /home/mubasher/public_html/wp-blog-header.php(13): require_once('/home/mubasher/...') #12 /home/mubasher/public_html/index.php(17): require('/home/mubasher/...') #13 {main} thrown in /home/mubasher/public_html/wp-content/plugins/seo-by-rank-math/includes/helpers/class-wordpress.php on line 644