Please help me identify this error message

[4organics]

Hello,

 

I keep seeing this message in my error log that I am unable to figure out. Can someone please help me understand what could be causing this? The message is:

 

PHP Fatal error:  Class 'Context' not found in footer.php

 

I keep staring at the footer.php but I have no idea what the context controller is referring to and not enough knowledge to know where to look. I am using presta 1.5.6 with a slightly self-customized theme and I do not see any errors on my site when I check it. Is this a major error? I am not much of a programmer, so I don't know where to begin. Could it be a module I installed?

 

Please help me figure out what to do to fix this?  

 

Thanks

 

Rafael