Warning: require(/users/holgersblog/www/wp-includes/class-wp-hook.php) [function.require]: Failed to open stream: No such file or directory in /users/holgersblog/www/wp-includes/plugin.php on line 25

Fatal error: Uncaught Error: Failed opening required '/users/holgersblog/www/wp-includes/class-wp-hook.php' (include_path='.') in /users/holgersblog/www/wp-includes/plugin.php:25 Stack trace: #0 /users/holgersblog/www/wp-settings.php(51): require_once() #1 /users/holgersblog/www/wp-config.php(88): require_once('/users/holgersb...') #2 /users/holgersblog/www/wp-load.php(50): require_once('/users/holgersb...') #3 /users/holgersblog/www/wp-blog-header.php(13): require_once('/users/holgersb...') #4 /users/holgersblog/www/index.php(17): require('/users/holgersb...') #5 {main} thrown in /users/holgersblog/www/wp-includes/plugin.php on line 25