Fatal error: Uncaught Error: Call to undefined function add_action() in /home/tholic/training.stjohnkenya.org/wp-content/plugins/stm-post-type/theme/image_sizes.php:2 Stack trace: #0 {main} thrown in /home/tholic/training.stjohnkenya.org/wp-content/plugins/stm-post-type/theme/image_sizes.php on line 2