Always on instance service broker/database mirroring transport connection endpoint error

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SQL

AWS

Hello,

I have a production instance that has 2 AOG. There is no mirroring configured for both groups. Both groups are also in 'Healthy' state.

Upon checking the error log on SQL Server, I noticed that starting from 12/19/20 there has been this error that started at 9:03PM. I went through an dug in further to see that there is a pattern. Every night around 9:03-9:04pm the same error is happening. This does not occur during normal business hours.

Error msg:

An error occurred in a Service Broker/Database Mirroring transport connection endpoint, Error: 8474, State: 11. (Near endpoint role: Target, far endpoint address: '') 

What I have tried:

I checked the event viewer logs to find the same error message. I looked up some other resources online and they advised to stop and restart the endpoints, but I don't think that would be necessary in this case and I should not do that during online hours

Anyone have any thoughts as to why it might be happening on a daily basis around the same time, and how I may be able to solve this error?

Thanks in advance.