Magento Bug Applying tax (VAT) twice

[akstern]

If I insert item including tax all works fine , but if I insert without tax the grand total without tax

doesn't work and show total tax included.

So in last row the system add tax again.

Can you give me the bug fix ? Thanks

[akstern · Accepted solution]

The bug is in module paypal free 

flywebdesign_paypalfee

https://www.magentocommerce.com/magento-connect/paypal-payment-fee.html

[Datasp]

Thank you