Warning: require_once(frontend/class-frontend-control.php): Failed to open stream: No such file or directory in /home/thoitra4/public_html/wp-content/plugins/fixed-toc/fixed-toc.php on line 87

Fatal error: Uncaught Error: Failed opening required 'frontend/class-frontend-control.php' (include_path='.:/opt/cpanel/ea-php81/root/usr/share/pear') in /home/thoitra4/public_html/wp-content/plugins/fixed-toc/fixed-toc.php:87 Stack trace: #0 /home/thoitra4/public_html/wp-includes/class-wp-hook.php(324): {closure}('') #1 /home/thoitra4/public_html/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters(NULL, Array) #2 /home/thoitra4/public_html/wp-includes/plugin.php(517): WP_Hook->do_action(Array) #3 /home/thoitra4/public_html/wp-settings.php(678): do_action('after_setup_the...') #4 /home/thoitra4/public_html/wp-config.php(100): require_once('/home/thoitra4/...') #5 /home/thoitra4/public_html/wp-load.php(50): require_once('/home/thoitra4/...') #6 /home/thoitra4/public_html/wp-blog-header.php(13): require_once('/home/thoitra4/...') #7 /home/thoitra4/public_html/index.php(17): require('/home/thoitra4/...') #8 {main} thrown in /home/thoitra4/public_html/wp-content/plugins/fixed-toc/fixed-toc.php on line 87