diff --git a/Layout/default/User/Form.php b/Layout/default/User/Form.php
index 0887e373b..291b3e205 100644
--- a/Layout/default/User/Form.php
+++ b/Layout/default/User/Form.php
@@ -68,9 +68,9 @@
                   <option value="true" <?=(isset($user) && $user->is("employee")) ? "selected='selected'" : ""?>>Yes</option>
                 </select>
               </div>
-              <div class="form-group <?=(!$user->is("employee")) ? "hidden" : ""?>" id="employee-number-container">
+              <div class="form-group <?=(isset($user) && !$user->is("employee")) ? "hidden" : ""?>" id="employee-number-container">
                 <label for="employee_number"><span class="text-warning font-weight-bold font-16">X</span><span class="text-primary font-weight-bold">inon</span> Mitarbeiternummer:</label>
-                <input type="text" id="employee_number" name="employee_number" class="form-control" value="<?=(new WorkerFlag($user->id, "employee_number"))->value()?>" />
+                <input type="text" id="employee_number" name="employee_number" class="form-control" value="<?=(isset($user)) ? (new WorkerFlag($user->id, "employee_number"))->value() : ""?>" />
               </div>
               <div class="form-group">
                 <label for="technician">Techniker:</label>