Rails: Production Authlogic Problem with find_using_perishable_token

Question

So I'm pretty puzzled by this one. This works in development mode and had worked in production mode before, but I just got this hoptoad error that said this:

An error has just occurred. View full details at:

http://goldhat.hoptoadapp.com/errors/2418099

Error Message:

NoMethodError: undefined method `reset_perishable_token!' for #

Where:

password_resets#create

[GEM_ROOT]/gems/activerecord-2.3.5/lib/active_record/attribute_methods.rb, line 260

Now my password resets and user email verification doesn't work because this method (and the reset_perishable_token! method) is apparently undefined. I can't conceive of where to begin with this problem).