explode() expects parameter 2 to be string, int given 求帮忙

DAO

SERVICE

Controller

Route::get('race_order/list', 'v1.order.RaceOrderController/lst')
->name('orderList')->option(['real_name' => '订单列表']); //订单列表


uniapp 
export function getRaceOrderList(data) {
	return request.get('race_order/list', data);
}

getRaceOrderList({
						// type: that.orderStatus,
						page: that.page,
						limit: that.limit
					})
					.then(res => {
						let list = res.data || [];
						let loadend = list.length < that.limit;
						that.orderList = that.$util.SplitArray(list, that.orderList);
						that.$set(that, 'orderList', that.orderList);
						that.loadend = loadend;
						that.loading = false;
						that.loadTitle = loadend ? that.$t(`没有更多内容啦~`) : that.$t(`加载更多`);
						that.page = that.page + 1;
					})
					.catch(err => {
						that.loading = false;
						that.loadTitle = that.$t(`加载更多`);
					});

为什么报错啊。。。。

实在是找不到问题在哪里了。。。。

【产品名称】：CRMEB标准版

【产品版本】：5.3

【部署方式】：phpstudy

【部署环境】：本地环境

【php版本】：7.3

【Mysql版本】：5.7

【使用终端】：小程序