It looks like you have differing distributions of Elasticsearch and Metricbeat installed. I'm guessing you installed the OSS version of Elasticsearch, but not the OSS version of metricbeat. The "Default" version that the error message is referencing is the version that has non-open source components bundled in. This is usually the version you get when you download Metricbeat or Elasticsearch from our website.
6.2.4 is quite old, I would recommend upgrading to a newer default release.