Fatal error: Uncaught Error: Call to undefined function wp_is_block_theme() in /home/maxivibe/public_html/wp-includes/post.php:359 Stack trace: #0 /home/maxivibe/public_html/wp-settings.php(394): create_initial_post_types() #1 /home/maxivibe/public_html/wp-config.php(91): require_once('/home/maxivibe/...') #2 /home/maxivibe/public_html/wp-load.php(50): require_once('/home/maxivibe/...') #3 /home/maxivibe/public_html/wp-blog-header.php(13): require_once('/home/maxivibe/...') #4 /home/maxivibe/public_html/index.php(17): require('/home/maxivibe/...') #5 {main} thrown in /home/maxivibe/public_html/wp-includes/post.php on line 359