undefined method `sub!' for :@secure:Symbol (NoMethodError)

/usr/local/lib/tdiary/tdiary.rb:394:in `block in initialize'
/usr/local/lib/tdiary/tdiary.rb:393:in `each'
/usr/local/lib/tdiary/tdiary.rb:393:in `initialize'
/var/www/tree/d/index.rb:30:in `new'
/var/www/tree/d/index.rb:30:in `_main'
/var/www/tree/d/index.rb:16:in `main'
/var/www/tree/d/index.rb:116:in `<main>'