Proper out-of-memory errors

Currently, if a process runs out of memory we get a generic error which can mean multiple different causes. Error messages should be as specific as possible to help debugging.

## Environment details:
IBM Cloud

## Provide the expected results and outputs:
If the process runs out of memory, the error type will be specified as such.

## Provide the actual results and outputs:
A generic unexpected error has happened message which is too ambiguous.