Fatal error: Uncaught Error: Call to undefined function add_filter() in C:\Program Files\Apache Group\Apache2\htdocs\stone-quarries\wordpress\wp-includes\block-supports\layout.php:981 Stack trace: #0 {main} thrown in C:\Program Files\Apache Group\Apache2\htdocs\stone-quarries\wordpress\wp-includes\block-supports\layout.php on line 981