Cannot tap karan/karan: invalid syntax in tap

[dreambt]

➜ ~ brew tap karan/karan
==> Tapping karan/karan
Cloning into '/usr/local/Homebrew/Library/Taps/karan/homebrew-karan'...
remote: Counting objects: 7, done.
remote: Compressing objects: 100% (6/6), done.
Unpacking objects: 100% (7/7), done.
remote: Total 7 (delta 0), reused 4 (delta 0), pack-reused 0
Error: Invalid formula: /usr/local/Homebrew/Library/Taps/karan/homebrew-karan/Formula/gitignore.rb
Calling Formula.sha1 is disabled!
Use Formula.sha256 instead.
/usr/local/Homebrew/Library/Taps/karan/homebrew-karan/Formula/gitignore.rb:4:in `class:Gitignore'
Please report this to the karan/karan tap!
Error: Cannot tap karan/karan: invalid syntax in tap!

[karan]

Please use the binary from the releases page (see the readme)