diff --git a/webapp/controller/RechargeActivity.trait.php b/webapp/controller/RechargeActivity.trait.php
index ba79989..e2d8c30 100644
--- a/webapp/controller/RechargeActivity.trait.php
+++ b/webapp/controller/RechargeActivity.trait.php
@@ -33,7 +33,7 @@ trait RechargeActivity
         $vipinfo = array();
         $dailypurchase = array();
         $daysecs = phpcommon\getdayseconds(time());
-        $firstpurchase = array();
+        $firstpurchase = (object)array();
         if ($rechargerow) {
             if (!is_null($rechargerow['first_data'])) {
                 $firstrecharge = $rechargerow['first_data'];