Error when trying to serve locally

[iamdamosuzuki]

I'm getting an error related to the jekyll-remote-theme-0.4.2 whenever I try to serve this locally. Here's the error.

This happened on my personal fork (with minimal changes made) but is also happening on the main repo.

Configuration file: /Users/preservation/Documents/GitHub/futureDocs/_config.yml
      Remote Theme: Using theme pmarsceill/just-the-docs
jekyll 3.9.0 | Error:  404 - Not Found
Traceback (most recent call last):
	47: from /Users/preservation/.rbenv/versions/2.7.2/bin/bundle:25:in `<main>'
	46: from /Users/preservation/.rbenv/versions/2.7.2/bin/bundle:25:in `load'
	45: from /Users/preservation/.rbenv/versions/2.7.2/lib/ruby/gems/2.7.0/gems/bundler-2.2.5/exe/bundle:37:in `<top (required)>'
	44: from /Users/preservation/.rbenv/versions/2.7.2/lib/ruby/gems/2.7.0/gems/bundler-2.2.5/lib/bundler/friendly_errors.rb:130:in `with_friendly_errors'
	43: from /Users/preservation/.rbenv/versions/2.7.2/lib/ruby/gems/2.7.0/gems/bundler-2.2.5/exe/bundle:49:in `block in <top (required)>'
	42: from /Users/preservation/.rbenv/versions/2.7.2/lib/ruby/gems/2.7.0/gems/bundler-2.2.5/lib/bundler/cli.rb:24:in `start'
	41: from /Users/preservation/.rbenv/versions/2.7.2/lib/ruby/gems/2.7.0/gems/bundler-2.2.5/lib/bundler/vendor/thor/lib/thor/base.rb:485:in `start'
	40: from /Users/preservation/.rbenv/versions/2.7.2/lib/ruby/gems/2.7.0/gems/bundler-2.2.5/lib/bundler/cli.rb:30:in `dispatch'
	39: from /Users/preservation/.rbenv/versions/2.7.2/lib/ruby/gems/2.7.0/gems/bundler-2.2.5/lib/bundler/vendor/thor/lib/thor.rb:392:in `dispatch'
	38: from /Users/preservation/.rbenv/versions/2.7.2/lib/ruby/gems/2.7.0/gems/bundler-2.2.5/lib/bundler/vendor/thor/lib/thor/invocation.rb:127:in `invoke_command'
	37: from /Users/preservation/.rbenv/versions/2.7.2/lib/ruby/gems/2.7.0/gems/bundler-2.2.5/lib/bundler/vendor/thor/lib/thor/command.rb:27:in `run'
	36: from /Users/preservation/.rbenv/versions/2.7.2/lib/ruby/gems/2.7.0/gems/bundler-2.2.5/lib/bundler/cli.rb:494:in `exec'
	35: from /Users/preservation/.rbenv/versions/2.7.2/lib/ruby/gems/2.7.0/gems/bundler-2.2.5/lib/bundler/cli/exec.rb:28:in `run'
	34: from /Users/preservation/.rbenv/versions/2.7.2/lib/ruby/gems/2.7.0/gems/bundler-2.2.5/lib/bundler/cli/exec.rb:63:in `kernel_load'
	33: from /Users/preservation/.rbenv/versions/2.7.2/lib/ruby/gems/2.7.0/gems/bundler-2.2.5/lib/bundler/cli/exec.rb:63:in `load'
	32: from /Users/preservation/.rbenv/versions/2.7.2/bin/jekyll:25:in `<top (required)>'
	31: from /Users/preservation/.rbenv/versions/2.7.2/bin/jekyll:25:in `load'
	30: from /Users/preservation/.rbenv/versions/2.7.2/lib/ruby/gems/2.7.0/gems/jekyll-3.9.0/exe/jekyll:15:in `<top (required)>'
	29: from /Users/preservation/.rbenv/versions/2.7.2/lib/ruby/gems/2.7.0/gems/mercenary-0.3.6/lib/mercenary.rb:19:in `program'
	28: from /Users/preservation/.rbenv/versions/2.7.2/lib/ruby/gems/2.7.0/gems/mercenary-0.3.6/lib/mercenary/program.rb:42:in `go'
	27: from /Users/preservation/.rbenv/versions/2.7.2/lib/ruby/gems/2.7.0/gems/mercenary-0.3.6/lib/mercenary/command.rb:220:in `execute'
	26: from /Users/preservation/.rbenv/versions/2.7.2/lib/ruby/gems/2.7.0/gems/mercenary-0.3.6/lib/mercenary/command.rb:220:in `each'
	25: from /Users/preservation/.rbenv/versions/2.7.2/lib/ruby/gems/2.7.0/gems/mercenary-0.3.6/lib/mercenary/command.rb:220:in `block in execute'
	24: from /Users/preservation/.rbenv/versions/2.7.2/lib/ruby/gems/2.7.0/gems/jekyll-3.9.0/lib/jekyll/commands/serve.rb:75:in `block (2 levels) in init_with_program'
	23: from /Users/preservation/.rbenv/versions/2.7.2/lib/ruby/gems/2.7.0/gems/jekyll-3.9.0/lib/jekyll/commands/serve.rb:93:in `start'
	22: from /Users/preservation/.rbenv/versions/2.7.2/lib/ruby/gems/2.7.0/gems/jekyll-3.9.0/lib/jekyll/commands/serve.rb:93:in `each'
	21: from /Users/preservation/.rbenv/versions/2.7.2/lib/ruby/gems/2.7.0/gems/jekyll-3.9.0/lib/jekyll/commands/serve.rb:93:in `block in start'
	20: from /Users/preservation/.rbenv/versions/2.7.2/lib/ruby/gems/2.7.0/gems/jekyll-3.9.0/lib/jekyll/commands/build.rb:30:in `process'
	19: from /Users/preservation/.rbenv/versions/2.7.2/lib/ruby/gems/2.7.0/gems/jekyll-3.9.0/lib/jekyll/commands/build.rb:30:in `new'
	18: from /Users/preservation/.rbenv/versions/2.7.2/lib/ruby/gems/2.7.0/gems/jekyll-3.9.0/lib/jekyll/site.rb:31:in `initialize'
	17: from /Users/preservation/.rbenv/versions/2.7.2/lib/ruby/gems/2.7.0/gems/jekyll-3.9.0/lib/jekyll/site.rb:105:in `reset'
	16: from /Users/preservation/.rbenv/versions/2.7.2/lib/ruby/gems/2.7.0/gems/jekyll-3.9.0/lib/jekyll/hooks.rb:102:in `trigger'
	15: from /Users/preservation/.rbenv/versions/2.7.2/lib/ruby/gems/2.7.0/gems/jekyll-3.9.0/lib/jekyll/hooks.rb:102:in `each'
	14: from /Users/preservation/.rbenv/versions/2.7.2/lib/ruby/gems/2.7.0/gems/jekyll-3.9.0/lib/jekyll/hooks.rb:103:in `block in trigger'
	13: from /Users/preservation/.rbenv/versions/2.7.2/lib/ruby/gems/2.7.0/gems/jekyll-remote-theme-0.4.2/lib/jekyll-remote-theme.rb:33:in `block in <top (required)>'
	12: from /Users/preservation/.rbenv/versions/2.7.2/lib/ruby/gems/2.7.0/gems/jekyll-remote-theme-0.4.2/lib/jekyll-remote-theme.rb:27:in `init'
	11: from /Users/preservation/.rbenv/versions/2.7.2/lib/ruby/gems/2.7.0/gems/jekyll-remote-theme-0.4.2/lib/jekyll-remote-theme/munger.rb:25:in `munge!'
	10: from /Users/preservation/.rbenv/versions/2.7.2/lib/ruby/gems/2.7.0/gems/jekyll-remote-theme-0.4.2/lib/jekyll-remote-theme/downloader.rb:24:in `run'
	 9: from /Users/preservation/.rbenv/versions/2.7.2/lib/ruby/gems/2.7.0/gems/jekyll-remote-theme-0.4.2/lib/jekyll-remote-theme/downloader.rb:42:in `download'
	 8: from /Users/preservation/.rbenv/versions/2.7.2/lib/ruby/2.7.0/net/http.rb:606:in `start'
	 7: from /Users/preservation/.rbenv/versions/2.7.2/lib/ruby/2.7.0/net/http.rb:933:in `start'
	 6: from /Users/preservation/.rbenv/versions/2.7.2/lib/ruby/gems/2.7.0/gems/jekyll-remote-theme-0.4.2/lib/jekyll-remote-theme/downloader.rb:43:in `block in download'
	 5: from /Users/preservation/.rbenv/versions/2.7.2/lib/ruby/2.7.0/net/http.rb:1492:in `request'
	 4: from /Users/preservation/.rbenv/versions/2.7.2/lib/ruby/2.7.0/net/http.rb:1536:in `transport_request'
	 3: from /Users/preservation/.rbenv/versions/2.7.2/lib/ruby/2.7.0/net/http/response.rb:167:in `reading_body'
	 2: from /Users/preservation/.rbenv/versions/2.7.2/lib/ruby/2.7.0/net/http.rb:1537:in `block in transport_request'
	 1: from /Users/preservation/.rbenv/versions/2.7.2/lib/ruby/gems/2.7.0/gems/jekyll-remote-theme-0.4.2/lib/jekyll-remote-theme/downloader.rb:44:in `block (2 levels) in download'
/Users/preservation/.rbenv/versions/2.7.2/lib/ruby/gems/2.7.0/gems/jekyll-remote-theme-0.4.2/lib/jekyll-remote-theme/downloader.rb:67:in `raise_unless_sucess': 404 - Not Found (Jekyll::RemoteTheme::DownloadError)
``