Fatal error: Cannot redeclare _resolve_home_block_template() (previously declared in /wp-includes/block-template.php:348) in /wp-includes/deprecated.php on line 4605

Fatal error: Uncaught Error: Call to a member function set() on null in /wp-includes/l10n.php:784 Stack trace: #0 /wp-includes/l10n.php(872): 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 784