fix

api/controllers/WalletController.php

@@ -110,8 +110,6 @@ class WalletController extends BaseController
 
     public function actionGetBalance()
     {
-        $code = 0;
-        $msg = 'success';
         $platform_id = Yii::$app->request->get('platform_id', '');
         $token = Yii::$app->request->get('address', '');
         $symbol = Yii::$app->request->get('symbol', '');
@@ -163,7 +161,7 @@ class WalletController extends BaseController
         $service = new Chain33Service($node);
 
         if (false == $switch) {
-            $result = $service->getTokenBalance($token, $execer, $symbol);
+            $result = $service->getTokenBalance([$token], $execer, $symbol);
         } else {
             $result = $service->getBalance($token, $execer = '');
         }