Error creating the signature: Unable to read key

Problem/Motivation

I am getting messages that read Error creating the signature: Unable to read key

Steps to reproduce

After installing and setting up the base configuration setup per documentation. According to that I should be able to search my address in a separate Mastodon instance.

However I keep getting Error creating the signature: Unable to read key messages

as well as one that reads:

Outbox exception to https://mastodon.social/inbox for 2 to https://mastodon.social/inbox: Client error: `POST https://mastodon.social/inbox` resulted in a `401 Unauthorized` response: {"error":"Incompatible request signature. keyId and signature are required"}

Proposed resolution

I am running on Nginx and not apache, so there could be a modification needed there at the sites config file. I haven't figured it out yet however.