Error using createOrUpdate Method

[fergalindez]

I'm trying to use the createOrUpdate method, but I get this error.

(node:7342) UnhandledPromiseRejectionWarning: ResponseError: mapper_parsing_exception
at IncomingMessage. (/Users/fernandogalindez/Documents/Projects/SynthRiders/sr-analytics/plugins/elastic/node_modules/@elastic/elasticsearch/lib/Transport.js:240:25)
at IncomingMessage.emit (events.js:326:22)
at endReadableNT (_stream_readable.js:1244:12)
at processTicksAndRejections (internal/process/task_queues.js:80:21)

Reading in some other sites, this problem is related to string type that ElasticSeacrh does not support. I don't know if the issue is really associated with that problem or I'm committing some mistakes in the implementation.