Installed Optional Shipping Insurance and Calculator is Broken!

[kobra]

You backed up your files - did you backup your database?

[WiccanWitch420]

I backed up the database a couple of days ago, and only added a couple small changes since then. Do you have any suggestions for what I can do? I tested everything else on zen and admin and everything is working properly, I can perform every function, except the shipping estimor is not working and it is not working when people put items in their cart as well. Please help me