Dukagate is an open source e-commerce solution built for WordPress.
Another reason is usually the pdf folder inside of Dukagate. Please try make it writable
No. Nothing is wrong with you. :)
We test Dukagate on a large number of different server set-ups and envrionments and we are satisfied that it does work in these environments. However, the number of different environments 'out there' is infinite and we cannot possibly test on every single environment. If everything that you try fails to work, perharps you should move your site to one of the more common web hosts?