由于发送时间 Service Broker 错误，导致数据库 '%2' 中的事件通知 '%1' 被删除。请进行检查，确保事件通知中指定的会话句柄、Service Broker 约定以及服务都是活动的。

Event notification '%1' in database '%2' dropped due to send time service broker errors. Check to ensure the conversation handle, service broker contract, and service specified in the event notification are active.