fix 公众号发送

app/Jobs/WechatPlatform/GZHSendKFMessage.php

@@ -168,7 +168,7 @@ class GZHSendKFMessage implements ShouldQueue
 
     private function getGZH() {
         $gzh = DB::table('wechat_authorization_infos as a')
-            ->join('wechat_open_platform_infos as o', 'a.component_appid', 'o.app_id')
+            ->join('wechat_open_platform_infos as b', 'a.component_appid', 'b.app_id')
             ->where([
                 ['a.id', '=', $this->info['gzhId']],
                 ['a.is_enabled', '=', 1],