Fatal error: Uncaught Error: Class "WP_Block_Supports" not found in /usr/www/east110006/heizemod.us/a/wp-includes/block-supports/custom-classname.php:59
Stack trace:
#0 {main}
thrown in /usr/www/east110006/heizemod.us/a/wp-includes/block-supports/custom-classname.php on line 59