PayPal community forum latest posts using REST API

Hi,

I am using paypal extention to make payment in my magento website, But at the time of payment with paypal it gives a error :

"Das PayPal Gateway hat die Anfrage abgewiesen. The totals of the cart item amounts do not match order amounts (#10413: Transaction refused because of an invalid argument. See additional error messages for details)."

In English :

"The PayPal Gateway rejected the request. The totals of the cart item Amounts do not match order Amounts (# 10413: Transaction refused Because of an invalid argument See additional error messages for details.)."

and my total is correct , there are no problem in total.

Any idea what to do 

Thankyou in advance.