I am using DHL shipping methods in Magento. I have all the credentials Correct in Admin. After That Showing error in checkout "This shipping method is currently unavailable. If you would like to ship using this shipping method, please contact us."
and in DHL log not showing error but showing this DEBUG message:
2016-07-29T04:56:50+00:00 DEBUG (7): Array (  => Zero shipping charge for 'Domestic express'  => Zero shipping charge for 'Express easy' [__pid] => 17282 )
What Should I do. Please suggest me.