Fatal error: Uncaught Error: Call to undefined function str_contains() in /orl2020/wordpress-5.5.1-pl_PL/wordpress/wp-includes/load.php:1626 Stack trace: #0 /orl2020/wordpress-5.5.1-pl_PL/wordpress/wp-includes/default-constants.php(43): wp_convert_hr_to_bytes('256m') #1 /orl2020/wordpress-5.5.1-pl_PL/wordpress/wp-settings.php(61): wp_initial_constants() #2 /orl2020/wordpress-5.5.1-pl_PL/wordpress/wp-config.php(90): require_once('/orl2020/wordpr...') #3 /orl2020/wordpress-5.5.1-pl_PL/wordpress/wp-load.php(37): require_once('/orl2020/wordpr...') #4 /orl2020/wordpress-5.5.1-pl_PL/wordpress/xmlrpc.php(31): require_once('/orl2020/wordpr...') #5 {main} thrown in /orl2020/wordpress-5.5.1-pl_PL/wordpress/wp-includes/load.php on line 1626