ConnectionNotEstablished error when loading any page

I am getting this ConnectionNotEstablished error whenever I try to access any page on my rails app. The error only started to occur when I installed phpMyAdmin and changed my database's password. I updated my database.yml file to reflect the change but am still getting this error.

Does anyone have more details about what this error is or how I can go about fixing it?

I am running Ubuntu 10.10, Ruby 1.9.2, Rails 3.0.1, and connectin开发者_JS百科g with the mysql2 gem.

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Make sure that the database.yml file is properly formed