Fatal error: Declaration of WP_HTML_Processor::next_tag($query = null) must be compatible with WP_HTML_Tag_Processor::next_tag($query = null): bool in /wp-includes/html-api/class-wp-html-processor.php on line 364

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