I'm getting the following error on the admin beginner trail; create and share a dashboard in the reports and dashboards module: There was an unhandled exception. Please reference ID: HCOAKAFC. Error: Faraday::Error::ResourceNotFound. Message: NOT_FOUND: The requested resource does not exist.

I went through other posts that reported the same error and most reference the presence of a namespace. I'm using a new org with no namespace registered so am not sure what the cause is. I'm wondering if it's related to the fact that I can't access the chatter tab in this org. I keep getting a data access error to the reocrds I'm trying to merge every time I click on the chatter tab.