Problem with IERROR 500 - INTERNAL SERVER ERROR

I am having an issue with an error with Hot Drug Store Template.

My order emails are not being forwarded to our inbox so we are missing important credit card details for payment processing. I have updated to Joomla 2.5.11 and have also updated Virtuemart.

The error appears after placing order:

ERROR 500 - INTERNAL SERVER ERROR

Can anyone assist me in fixing this error. I am desperate!

My customers are struggling to place an order as well.

Please feel free to attempt to place an order and see for yourself at www.urbancheese.co.nz if you think you can help me.

Thank you kindly!

Kimberli

www.hotjoomlatemplates.com/support-forum...blem-error-500#35686