When I try to run it, I get this error:

/usr/local/ruby/lib/ruby/site_ruby/1.8/rbot/dbhash.rb:74:in
`initialize': PANIC: Invalid argument -- DB_RUNRECOVERY: Fatal error,
run database recovery (BDB::Fatal)
from /usr/local/ruby/lib/ruby/site_ruby/1.8/rbot/dbhash.rb:74:in
`new'
from /usr/local/ruby/lib/ruby/site_ruby/1.8/rbot/dbhash.rb:74:in
`open'
from /usr/local/ruby/lib/ruby/site_ruby/1.8/rbot/dbhash.rb:74:in
`initialize'
from /usr/local/ruby/lib/ruby/site_ruby/1.8/rbot/keywords.rb:96:in
`new'
from /usr/local/ruby/lib/ruby/site_ruby/1.8/rbot/keywords.rb:96:in
`initialize'
from /usr/local/ruby/lib/ruby/site_ruby/1.8/rbot/ircbot.rb:153:in
`new'
from /usr/local/ruby/lib/ruby/site_ruby/1.8/rbot/ircbot.rb:153:in
`initialize'
from ./rbot:78:in `new'
from ./rbot:78