Twelve Step Meeting List requires PHP 5.3 or greater because it makes use of anonymous functions. You appear to be on version %s.

WordPress recommends running 5.6 or greater.

', phpversion())); } //include key files include('includes/variables.php'); include('includes/functions.php'); include('includes/init.php'); include('includes/admin_edit.php'); include('includes/save.php'); include('includes/admin_lists.php'); include('includes/admin_import.php'); //these hooks need to be in this file register_activation_hook(__FILE__, function(){ tsml_custom_post_types(); flush_rewrite_rules(); }); register_deactivation_hook(__FILE__, function(){ tsml_custom_post_types(); flush_rewrite_rules(); });