Error thrown

Call to undefined function ctype_upper()


Fatal error: Uncaught Error: Call to undefined function ctype_upper() in /hermes/bosnacweb05/bosnacweb05bb/b1381/sl.lmccarter/public_html/wp/wp-content/mu-plugins/endurance-page-cache.php:495 Stack trace: #0 /hermes/bosnacweb05/bosnacweb05bb/b1381/sl.lmccarter/public_html/wp/wp-includes/class-wp-hook.php(292): Endurance_Page_Cache->option_handler('_transient_time...', '1732337684', 1732338266) #1 /hermes/bosnacweb05/bosnacweb05bb/b1381/sl.lmccarter/public_html/wp/wp-includes/class-wp-hook.php(316): WP_Hook->apply_filters('', Array) #2 /hermes/bosnacweb05/bosnacweb05bb/b1381/sl.lmccarter/public_html/wp/wp-includes/plugin.php(484): WP_Hook->do_action(Array) #3 /hermes/bosnacweb05/bosnacweb05bb/b1381/sl.lmccarter/public_html/wp/wp-includes/option.php(486): do_action('updated_option', '_transient_time...', '1732337684', 1732338266) #4 /hermes/bosnacweb05/bosnacweb05bb/b1381/sl.lmccarter/public_html/wp/wp-includes/option.php(900): update_option('_transient_time...', 1732338266) #5 /hermes/bosnacweb05/bosnacweb05bb/b1381/sl.lmc in /hermes/bosnacweb05/bosnacweb05bb/b1381/sl.lmccarter/public_html/wp/wp-content/mu-plugins/endurance-page-cache.php on line 495