Fatal error: Uncaught Error: Call to undefined function wp_theme_has_theme_json() in /home4/united/u-s-c.ca/wp-includes/theme-templates.php:228 Stack trace: #0 /home4/united/u-s-c.ca/wp-includes/class-wp-hook.php(324): wp_enable_block_templates('') #1 /home4/united/u-s-c.ca/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters(NULL, Array) #2 /home4/united/u-s-c.ca/wp-includes/plugin.php(517): WP_Hook->do_action(Array) #3 /home4/united/u-s-c.ca/wp-settings.php(673): do_action('after_setup_the...') #4 /home4/united/u-s-c.ca/wp-config.php(84): require_once('/home4/united/u...') #5 /home4/united/u-s-c.ca/wp-load.php(50): require_once('/home4/united/u...') #6 /home4/united/u-s-c.ca/wp-blog-header.php(13): require_once('/home4/united/u...') #7 /home4/united/u-s-c.ca/index.php(22): require('/home4/united/u...') #8 {main} thrown in /home4/united/u-s-c.ca/wp-includes/theme-templates.php on line 228