Fatal error: Maximum execution time of 30 seconds exceeded in C:\apache\www\wp-includes\class-wpdb.php on line 2349

Fatal error: Uncaught Error: Call to a member function set() on null in C:\apache\www\wp-includes\l10n.php:854 Stack trace: #0 C:\apache\www\wp-includes\l10n.php(957): load_textdomain('default', 'C:\\apache\\www/w...', 'zh_CN') #1 C:\apache\www\wp-includes\class-wp-fatal-error-handler.php(49): load_default_textdomain() #2 [internal function]: WP_Fatal_Error_Handler->handle() #3 {main} thrown in C:\apache\www\wp-includes\l10n.php on line 854