fixed cancel error

public/apiwp/cancel.php

@@ -1,6 +1,4 @@
 <?php
-ini_set('display_errors', 1);
-error_reporting(E_ALL);
 require_once __DIR__ . '/bootstrap.php';
 require_once dirname(__DIR__) . '/include/event_waitlist.php';
 require_once dirname(__DIR__) . '/include/event_mailer.php';
@@ -84,9 +82,11 @@ if (!$booking) {
     }
 }
 
-function e($v): string
-{
-    return htmlspecialchars((string) $v, ENT_QUOTES, 'UTF-8');
+if (!function_exists('e')) {
+    function e($v): string
+    {
+        return htmlspecialchars((string) $v, ENT_QUOTES, 'UTF-8');
+    }
 }
 ?>
 <!doctype html>

public/apiwp/confirm.php

@@ -59,9 +59,11 @@ if (!$booking) {
     }
 }
 
-function e($v): string
-{
-    return htmlspecialchars((string) $v, ENT_QUOTES, 'UTF-8');
+if (!function_exists('e')) {
+    function e($v): string
+    {
+        return htmlspecialchars((string) $v, ENT_QUOTES, 'UTF-8');
+    }
 }
 ?>
 <!doctype html>