Staff don't fix issues, developers do. Developers can't do anything in this situation because they rely on third party services for downloading. It's up to the service to fix their issues, as Minehut didn't make it.
Minehut doesn't make the plugins. If you have a link to a plugin you want specifically, you can suggest it on this forum category. Make sure it's compatible with 1.16 first though.
Yeah sorry you can't download your world at the moment. Nor do you have FTP / SFTP access to your server. The only thing you can do right now is wait for a fix to be deployed on the third party service.