Ложится вп

При увеличении посещаемости (до 500 человек) ложится WP выдает ошибки:

[Wed Jun 03 17:01:45 2015] [error] [client 118.71.111.189] \xd0\x91\xd0\xb0\xd0\xb7\xd0\xb0 \xd0\xb4\xd0\xb0\xd0\xbd\xd0\xbd\xd1\x8b\xd1\x85 WordPress \xd0\xb2\xd0\xbe\xd0\xb7\xd0\xb2\xd1\x80\xd0\xb0\xd1\x82\xd0\xb8\xd0\xbb\xd0\xb0 \xd0\xbe\xd1\x88\xd0\xb8\xd0\xb1\xd0\xba\xd1\x83 Lost connection to MySQL server during query \xd0\xb2 \xd0\xbe\xd1\x82\xd0\xb2\xd0\xb5\xd1\x82 \xd0\xbd\xd0\xb0 \xd0\xb7\xd0\xb0\xd0\xbf\xd1\x80\xd0\xbe\xd1\x81 SHOW FULL COLUMNS FROM `wp_options`, \xd0\xb2\xd1\x8b\xd0\xbf\xd0\xbe\xd0\xbb\xd0\xbd\xd0\xb5\xd0\xbd\xd0\xbd\xd1\x8b\xd0\xb9 require('wp-blog-header.php'), require_once('wp-load.php'), require_once('wp-config.php'), require_once('wp-settings.php'), do_action('init'), call_user_func_array, wp_cron, spawn_cron, set_transient, update_option, referer: https://www.yandex.ru/

- тут возможно нету опции... как найти файл где эту опцию просит?

[Wed Jun 03 20:29:14 2015] [error] [client 212.42.82.4] PHP Warning:  getimagesize(http://site/wp-content/uploads/2015/06/vodonaeva.jpg): failed to open stream: \xd0\x92\xd1\x80\xd0\xb5\xd0\xbc\xd1\x8f \xd0\xbe\xd0\xb6\xd0\xb8\xd0\xb4\xd0\xb0\xd0\xbd\xd0\xb8\xd1\x8f \xd1\x81\xd0\xbe\xd0\xb5\xd0\xb4\xd0\xb8\xd0\xbd\xd0\xb5\xd0\xbd\xd0\xb8\xd1\x8f \xd0\xb8\xd1\x81\xd1\x82\xd0\xb5\xd0\xba\xd0\xbb\xd0\xbe in /var/www/site/data/www/site/wp-content/plugins/news-yandex-ru/template.php on line 146

[Wed Jun 03 21:27:19 2015] [error] [client 46.119.99.141] PHP Fatal error:  Call to undefined function get_option() in /var/www/site/data/www/site/wp-content/plugins/news-yandex-ru/template.php on line 77

[Wed Jun 03 21:27:25 2015] [error] [client 46.119.99.141] Directory index forbidden by Options directive: /var/www/site/data/www/site/wp-content/plugins/news-yandex-ru/