https://api.weixin.qq.com/wxa/servicemarket/getwxaqrcode?access_token=123

请求参数：{"custom_params":"b=2","service_id":"3045365897944940545"}

返回结果：{"errcode":45029,"errmsg":"qrcode count out of limit  rid = 66d979c5-385a2d6d-2475a3d3 rid: 66d979c5-385a2d6d-2475a3d3"}

头一回调用接口生成葵花码，结果就提示超限制，这是为什么？