Memory Related errors on Load runner cloud while load testing for gRPC APIs

Hi All,

I am woking as a tester in Infosys and currently doing load testing for gRPC APIs. 

When I run a test for a single POST method gRPC API with 300/500 concurrent users i have started getting LG alerts related to memory ,which i guess affects my test results\

I have distributed the load between two regions. Earlier this used to work fine but i have started getting alerts for even a simple GET API now.
I have gone through the official documentation too but i didnt find any proper solution.
Could anyone help me regarding the same.

This is how the alerts look like

Thanks