ActiveModel::MissingAttributeError occurs after deploying and then goes away after a while

Question

I have a Rails 3.0.9 app that, once it is deployed, suffers from a bunch of ActiveModel::MissingAttributeErrors that crop up causing 500s. The errors occur fairly randomly,

Answer 1

you need to add line

rescue ActiveRecord::MissingAttributeError 

in your after_initialize() method of the model