fixed undefined variable

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

@@ -43,7 +43,7 @@ if(!$contentData) {
 
 $formID = rand(0, 100000);
 ?>
-<div id="{{$key}}_{{ $formID }}">
+<div id="form_{{ $formID }}">
     <input type="hidden" name="data" value="">
     <div class="mb-3 d-flex align-items-start">
         <div class="width-100px mr-3">