Warning: require_once(/var/www/html/public/wp-content/plugins/really-simple-ssl/class-mixed-content-fixer.php): Failed to open stream: No such file or directory in /var/www/html/public/wp-content/plugins/really-simple-ssl/rlrsssl-really-simple-ssl.php on line 124

Fatal error: Uncaught Error: Failed opening required '/var/www/html/public/wp-content/plugins/really-simple-ssl/class-mixed-content-fixer.php' (include_path='.:/usr/local/lib/php') in /var/www/html/public/wp-content/plugins/really-simple-ssl/rlrsssl-really-simple-ssl.php:124
Stack trace:
#0 /var/www/html/public/wp-content/plugins/really-simple-ssl/rlrsssl-really-simple-ssl.php(81): REALLY_SIMPLE_SSL->includes()
#1 /var/www/html/public/wp-content/plugins/really-simple-ssl/rlrsssl-really-simple-ssl.php(223): REALLY_SIMPLE_SSL::instance()
#2 /var/www/html/public/wp-includes/class-wp-hook.php(324): RSSSL('')
#3 /var/www/html/public/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters(NULL, Array)
#4 /var/www/html/public/wp-includes/plugin.php(517): WP_Hook->do_action(Array)
#5 /var/www/html/public/wp-settings.php(578): do_action('plugins_loaded')
#6 /var/www/html/wp-config.php(130): require_once('/var/www/html/p...')
#7 /var/www/html/public/wp-load.php(55): require_once('/var/www/html/w...')
#8 /var/www/html/public/wp-blog-header.php(13): require_once('/var/www/html/p...')
#9 /var/www/html/public/index.php(17): require('/var/www/html/p...')
#10 {main}
  thrown in /var/www/html/public/wp-content/plugins/really-simple-ssl/rlrsssl-really-simple-ssl.php on line 124