Setup ERPNext-100915.ova Error

Dear Sir,
I’m new on the ErpNext. I installed Virtualbox and import ERPNext-100915.ova on a window server 2008. I did login to the system , however, the setup showing error as following:

“Setting this Address Template as default as there is no other default”
“Duplicate name Print Heading Credit Note”

Can you please advise for further action, thanks.

Regards,
Felix

Its very old bug.
Please refer this post