Issue Description: Error when trying to use Minio with Dynmap

• Dynmap Version: dynmap-3.7-beta4

• Server Version: Fabric 1.20.1

• Pastebin of Configuration.txt: https://pastebin.com/GPqDhqw6

• Pastebin of crashlogs or other relevant logs: https://pastebin.com/3Af9mX2s

• Other Relevant Data/Screenshots: Not related to other Mods

• Steps to Replicate:

• Install Minio on sub domains with ssl from letsencrypt and use the api sub domain for dynmap

• Create access key and secret

• Add information to s3 settings like follows
  type: aws_s3
  bucketname: "dynmapfabricbucket"
  region: "eu-central-1"
  aws_access_key_id: "secret-id"
  aws_secret_access_key: "secret-access-key-id"
  #prefix: ""
  override_endpoint: "https://minio-api.example.com"

• Start server

• See error

• I have looked at all other issues and this is not a duplicate
• I have been able to replicate this

out of our domain, we only support the aws-s3 backend storage, and the implementation is very lackluster, as there is no unified way to catch all the different versions of s3 storage