Fatal error: Uncaught Error: Call to undefined function getallheaders() in /wp-includes/rest-api/endpoints/class-wp-rest-attachments-controller.php:1 Stack trace: #0 /wp-settings.php(263): require() #1 /wp-config.php(89): require_once('/wp-settings.ph...') #2 /wp-load.php(50): require_once('/wp-config.php') #3 /wp-blog-header.php(13): require_once('/wp-load.php') #4 /index.php(17): require('/wp-blog-header...') #5 {main} thrown in /wp-includes/rest-api/endpoints/class-wp-rest-attachments-controller.php on line 1

Fatal error: Uncaught Error: Call to a member function set() on null in /wp-includes/l10n.php:786 Stack trace: #0 /wp-includes/l10n.php(874): load_textdomain('default', '//wp-content/la...', 'pl_PL') #1 /wp-includes/class-wp-fatal-error-handler.php(47): load_default_textdomain() #2 [internal function]: WP_Fatal_Error_Handler->handle() #3 {main} thrown in /wp-includes/l10n.php on line 786