fixed dx form

resources/views/app/patient/canvas-sections/dx/form.blade.php

@@ -2,6 +2,9 @@
 if(!isset($contentData['items'])){
     $contentData['items'] = [];
 }
+if(!is_array($contentData['items'])){
+    $contentData['items'] = [];
+}
 if(!$contentData || !isset($contentData['items']) || !count($contentData['items'])) {
     $contentData = [
         "items" => [