Trouble with xmpp4r-simple.rb

Now, the strange thing about this is that this script used to run just
Yet, after having run it a few times, for absolutely no reason (No ruby
updates or anything have been executed by me) it has suddenly decided to
stop working.

The following is what the debug returns:

ruby mercutiobot.rb
warning: (…) interpreted as grouped expression
warning: useless use of true in void context
C:/Ruby/lib/ruby/1.8/resolv.rb:600:in initialize': wrong number of arguments (0 for 1) (ArgumentError) from C:/Ruby/lib/ruby/1.8/resolv.rb:600:inexception’
from C:/Ruby/lib/ruby/1.8/resolv.rb:600:in raise' from C:/Ruby/lib/ruby/1.8/resolv.rb:600:inrequest’
from C:/Ruby/lib/ruby/1.8/resolv.rb:474:in each_resource' from C:/Ruby/lib/ruby/1.8/resolv.rb:919:inresolv’
from C:/Ruby/lib/ruby/1.8/resolv.rb:917:in each' from C:/Ruby/lib/ruby/1.8/resolv.rb:917:inresolv’
from C:/Ruby/lib/ruby/1.8/resolv.rb:916:in each' ... 11 levels... from C:/Ruby/lib/ruby/gems/1.8/gems/xmpp4r-simple-0.8.8/lib/xmpp4r-simple.rb:147:instatus’
initialize' from mercutiobot.rb:25:innew’
from mercutiobot.rb:25
Exit code: 1

Can anyone tell me why it is suddenly deciding not to work?