Проблема начала наблюдаться с 13 марта, в папке engine начал пополняться log файл, с ошибкой ниже. Раньше такого не было.
[13-Mar-2014 08:04:59 Europe/Amsterdam] PHP Notice: Undefined index: HTTP_REFERER in /home/kerbalwo/public_html/engine/go.php on line 34
[13-Mar-2014 08:14:37 Europe/Amsterdam] PHP Notice: Undefined index: HTTP_REFERER in /home/kerbalwo/public_html/engine/go.php on line 34
[13-Mar-2014 10:25:48 Europe/Amsterdam] PHP Notice: Undefined index: HTTP_REFERER in /home/kerbalwo/public_html/engine/go.php on line 34
[13-Mar-2014 10:25:48 Europe/Amsterdam] PHP Notice: Undefined index: HTTP_REFERER in /home/kerbalwo/public_html/engine/go.php on line 34
[13-Mar-2014 10:50:53 Europe/Amsterdam] PHP Notice: Undefined index: HTTP_REFERER in /home/kerbalwo/public_html/engine/go.php on line 34
[13-Mar-2014 10:51:05 Europe/Amsterdam] PHP Notice: Undefined index: HTTP_REFERER in /home/kerbalwo/public_html/engine/go.php on line 34
[13-Mar-2014 11:01:04 Europe/Amsterdam] PHP Notice: Undefined index: HTTP_REFERER in /home/kerbalwo/public_html/engine/go.php on line 34
[13-Mar-2014 11:01:35 Europe/Amsterdam] PHP Notice: Undefined index: HTTP_REFERER in /home/kerbalwo/public_html/engine/go.php on line 34
[13-Mar-2014 11:01:45 Europe/Amsterdam] PHP Notice: Undefined index: HTTP_REFERER in /home/kerbalwo/public_html/engine/go.php on line 34
[13-Mar-2014 11:03:45 Europe/Amsterdam] PHP Notice: Undefined index: HTTP_REFERER in /home/kerbalwo/public_html/engine/go.php on line 34
[13-Mar-2014 11:08:18 Europe/Amsterdam] PHP Notice: Undefined index: HTTP_REFERER in /home/kerbalwo/public_html/engine/go.php on line 34
[13-Mar-2014 11:18:28 Europe/Amsterdam] PHP Notice: Undefined index: HTTP_REFERER in /home/kerbalwo/public_html/engine/go.php on line 34
[13-Mar-2014 11:36:00 Europe/Amsterdam] PHP Notice: Undefined index: HTTP_REFERER in /home/kerbalwo/public_html/engine/go.php on line 34
.................
[24-Mar-2014 12:12:29 Europe/Amsterdam] PHP Notice: Undefined index: HTTP_REFERER in /home/kerbalwo/public_html/engine/go.php on line 34
[24-Mar-2014 12:48:17 Europe/Amsterdam] PHP Notice: Undefined index: HTTP_REFERER in /home/kerbalwo/public_html/engine/go.php on line 34
[24-Mar-2014 13:17:29 Europe/Amsterdam] PHP Notice: Undefined index: HTTP_REFERER in /home/kerbalwo/public_html/engine/go.php on line 34
[24-Mar-2014 13:19:37 Europe/Amsterdam] PHP Notice: Undefined index: HTTP_REFERER in /home/kerbalwo/public_html/engine/go.php on line 34
[24-Mar-2014 13:19:49 Europe/Amsterdam] PHP Notice: Undefined index: HTTP_REFERER in /home/kerbalwo/public_html/engine/go.php on line 34
[24-Mar-2014 14:08:33 Europe/Amsterdam] PHP Notice: Undefined index: HTTP_REFERER in /home/kerbalwo/public_html/engine/go.php on line 34
[24-Mar-2014 14:13:50 Europe/Amsterdam] PHP Notice: Undefined index: HTTP_REFERER in /home/kerbalwo/public_html/engine/go.php on line 34
34 строка go.php - $_SERVER['HTTP_REFERER'] = reset_url ( $_SERVER['HTTP_REFERER'] );
Замечаем что когда происходит ошибка, начинает нагружаться сервер, и происходит ошибка вида Iternal Server Error.
Что делать? Как найти в чем проблема?