Fatal error: Cannot redeclare wlwmanifest_link() (previously declared in /home/fortuna-krp/ftp/wp-includes/general-template.php:3382) in /home/fortuna-krp/ftp/wp-includes/deprecated.php on line 4652

Fatal error: Uncaught Error: Call to a member function set() on null in /home/fortuna-krp/ftp/wp-includes/l10n.php:856 Stack trace: #0 /home/fortuna-krp/ftp/wp-includes/l10n.php(959): load_textdomain('default', '/home/fortuna-k...', 'pl_PL') #1 /home/fortuna-krp/ftp/wp-includes/class-wp-fatal-error-handler.php(49): load_default_textdomain() #2 [internal function]: WP_Fatal_Error_Handler->handle() #3 {main} thrown in /home/fortuna-krp/ftp/wp-includes/l10n.php on line 856