Hey there! From that top line in the error log you pasted, it's looking like you're hitting a circuit breaker that prevents the instance from running into an out of memory exception.
Looks like someone on the forums hit something similar to this: What does this error mean - Data too large, data for [<transport_request>]
Here's more info on the circuit breaker if you're curious: Improve Elasticsearch resiliency with the real memory circuit breaker | Elastic Blog
It seems like a good fix here would be to increase the amount of heap memory that your kibana instance is using so you're able to retrieve that data