Fatal error: Cannot declare class WP_Meta_Query, because the name is already in use in /home/edef/www/wp-includes/class-wp-meta-query.php on line 22

Fatal error: Uncaught Error: Call to undefined function is_protected_endpoint() in /home/edef/www/wp-includes/class-wp-fatal-error-handler.php:180 Stack trace: #0 /home/edef/www/wp-includes/class-wp-fatal-error-handler.php(147): WP_Fatal_Error_Handler->display_default_error_template(Array, false) #1 /home/edef/www/wp-includes/class-wp-fatal-error-handler.php(52): WP_Fatal_Error_Handler->display_error_template(Array, false) #2 [internal function]: WP_Fatal_Error_Handler->handle() #3 {main} thrown in /home/edef/www/wp-includes/class-wp-fatal-error-handler.php on line 180