Importing quill-import.xml

Hi, Looking forward to trying out your Quill theme. Especially like the look of the demo. The quill-settings.xml file imported just fine, but I’m getting an error when importing the quill-import.xml file:

500 Internal Server Error
The server encountered an internal error or misconfiguration and was unable to complete your request. Please contact the server administrator and inform them of the time the error occurred, and the actions you performed just before this error. More information about this error may be available in the server error log.

I’ve tried a few times and continue getting the same error. Suggestions on how to correct this? Thanks, Mike