Changing ProductTemplate.SingleVariant.cshtml

When I tried to change the move the _productAttributes in ProductTemplate.SingleVariant.cshtml into the
<div class="product-details-info">,  I get an internal error message from discountasp.net

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We're sorry, an internal error occurred that prevents the request to complete.

Our supporting staff has been notified with this error and will address this issue shortly. We profusely apologize for the inconvenience and for any damage this may cause. You might want to try the same action at later time.
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Please advice.  
Thank you,

Richard

You're getting a generic error ("We're sorry, an internal error occurred that prevents the request to complete"):

To find out what went wrong you need to turn off the custom errors mode.
1. Open web.config file
2. Find out the following line <customErrors defaultRedirect="errorpage.htm" mode="RemoteOnly">
3. Replace it with <customErrors defaultRedirect="errorpage.htm" mode="Off">

Thank you.   Now I can see the error.