Fatal error: Uncaught Error: Call to undefined function add_action() in C:\xampp\htdocs\stopcovid.anamai.moph.go.th\wp-includes\blocks\categories.php:120 Stack trace: #0 {main} thrown in C:\xampp\htdocs\stopcovid.anamai.moph.go.th\wp-includes\blocks\categories.php on line 120