截断系统表后500内部错误

Question

I am getting an error:

Blockquote HTTP Error 500 (Internal Server Error): An unexpected condition was encountered while the server was attempting to fulfill the request.

The last thing I did was I emptied the system table in drupal.

Below is my log. Please advice what I can do to get it up again.

Blockquote Failed loading /usr/lib/php5//xdebug.so: /usr/lib/php5//xdebug.so: cannot open shared object file: No such file or directory Failed loading /usr/lib/php5//xdebug.so: /usr/lib/php5//xdebug.so: cannot open shared object file: No such file or directory
[Tue Jul 30 13:56:09 2013] [notice] caught SIGTERM, shutting down Failed loading /usr/lib/php5//xdebug.so: /usr/lib/php5//xdebug.so: cannot open shared object file: No such file or directory
[Tue Jul 30 13:56:53 2013] [notice] Apache/2.2.22 (Ubuntu) PHP/5.4.6-1ubuntu1.2 configured -- resuming normal operations
[Tue Jul 30 13:59:00 2013] [error] [client 127.0.0.1] PHP Fatal error: Call to undefined function user_access() in /var/www/iqacademy/includes/menu.inc on $
[Tue Jul 30 13:59:00 2013] [error] [client 127.0.0.1] PHP Stack trace:
[Tue Jul 30 13:59:00 2013] [error] [client 127.0.0.1] PHP 1. {main}() /var/www/iqacademy/index.php:0
[Tue Jul 30 13:59:00 2013] [error] [client 127.0.0.1] PHP 2. menu_execute_active_handler() /var/www/iqacademy/index.php:17
[Tue Jul 30 13:59:00 2013] [error] [client 127.0.0.1] PHP 3. menu_get_item() /var/www/iqacademy/includes/menu.inc:344
[Tue Jul 30 13:59:00 2013] [error] [client 127.0.0.1] PHP 4. _menu_translate() /var/www/iqacademy/includes/menu.inc:317
[Tue Jul 30 13:59:00 2013] [error] [client 127.0.0.1] PHP 5. _menu_check_access() /var/www/iqacademy/includes/menu.inc:582
[Tue Jul 30 13:59:03 2013] [error] [client 127.0.0.1] PHP Fatal error: Call to undefined function user_access() in /var/www/iqacademy/includes/menu.inc on $
[Tue Jul 30 13:59:03 2013] [error] [client 127.0.0.1] PHP Stack trace:
[Tue Jul 30 13:59:03 2013] [error] [client 127.0.0.1] PHP 1. {main}() /var/www/iqacademy/index.php:0
[Tue Jul 30 13:59:03 2013] [error] [client 127.0.0.1] PHP 2. menu_execute_active_handler() /var/www/iqacademy/index.php:17
[Tue Jul 30 13:59:03 2013] [error] [client 127.0.0.1] PHP 3. menu_get_item() /var/www/iqacademy/includes/menu.inc:344
[Tue Jul 30 13:59:03 2013] [error] [client 127.0.0.1] PHP 4. _menu_translate() /var/www/iqacademy/includes/menu.inc:317
[Tue Jul 30 13:59:03 2013] [error] [client 127.0.0.1] PHP 5. _menu_check_access() /var/www/iqacademy/includes/menu.inc:582
[Tue Jul 30 13:59:04 2013] [error] [client 127.0.0.1] File does not exist: /var/www/favicon.ico
[Tue Jul 30 13:59:08 2013] [error] [client 127.0.0.1] PHP Fatal error: Call to undefined function user_access() in /var/www/iqacademy/includes/menu.inc on $
[Tue Jul 30 13:59:08 2013] [error] [client 127.0.0.1] PHP Stack trace:
[Tue Jul 30 13:59:08 2013] [error] [client 127.0.0.1] PHP 1. {main}() /var/www/iqacademy/index.php:0
[Tue Jul 30 13:59:08 2013] [error] [client 127.0.0.1] PHP 2. menu_execute_active_handler() /var/www/iqacademy/index.php:17
[Tue Jul 30 13:59:08 2013] [error] [client 127.0.0.1] PHP 3. menu_get_item() /var/www/iqacademy/includes/menu.inc:344
[Tue Jul 30 13:59:08 2013] [error] [client 127.0.0.1] PHP 4. _menu_translate() /var/www/iqacademy/includes/menu.inc:317
[Tue Jul 30 13:59:08 2013] [error] [client 127.0.0.1] PHP 5. _menu_check_access() /var/www/iqacademy/includes/menu.inc:582
[Tue Jul 30 13:59:08 2013] [error] [client 127.0.0.1] File does not exist: /var/www/favicon.ico