fix fcode spid error

helper/model/goods_summary.php

@@ -215,7 +215,7 @@ class goods_summary
         else
         {
             global $config;
-            $spid = $config['autosend_fcodes']['payconfirm_spid'];
+            $spid = $config['autosend_fcodes']['fcodes_spid'];
 
             if(isset($lock_num) && $lock_num > 0) {
                 $summary['fcode_desc'] = "F码处于锁定状态，启用后可以购买";