Response status code: 500 - Python SDK

This is happening with expertai-nlapi-2.1.3

I have an export from a product (Roam Research) that is return results in a psedu-markdown template. I've extracted it out and then run the following code to clean it up a little bit:

eaiString = eaiString + s.get('string').replace('\n', ' ').replace('\r', ' ').replace('{',' ').replace('}',' ') + "\n"
I then called the SDK with the following code

document = client.specific_resource_analysis(
        body={"document": {"text":text}}, 
        params={'language':'en', 'resource': 'relevants'})

The text is about 6500 lines and 658k characters.

I had submitted a much smaller excerpt earlier with out any problems so I don't think its an authentication issue.