Fatal error: Uncaught Error: Class 'WP_Block_Supports' not found in /home/jstudent/public_html/tworzeniestronup/wp-includes/block-supports/border.php:170
Stack trace:
#0 {main}
thrown in /home/jstudent/public_html/tworzeniestronup/wp-includes/block-supports/border.php on line 170