edit

service/agent/database/order.php

@@ -98,6 +98,7 @@ $order_type = array
 $button = array();
 $parent_mid = Dever::input('search_option_parent_mid');
 $mid = Dever::input('search_option_mid');
+$pmid = '';
 if ($parent_mid) {
     $pmid = $parent_mid;
 }