What do these error codes mean, api's not responding today

I got these error codes today from my bot… what do they mean?
Orders did not go through, this has been working perfectly for last several months…

@Dhan @Dhan_Help

Hello @sugam192

This happened due to lag on our servers that we faced this morning. Here are details about the same - Incident Report: 5th July 2023.

Our servers are working fine now and you shouldn’t be facing this issue.