WARN: Environment health has transitioned from Ok to Severe. 100.0 % of the
requests are erroring with HTTP 4xx. Insufficient request rate (6.0
requests/min) to determine application health. ELB processes are not healthy
on all instances. Configuration update in progress (running for 13 seconds).
ELB health is failing or not available for all instances.
由于此警告，我收到内部服务器错误。有人可以帮我理解这个警告的原因以及如何解决它吗？感谢。