This transaction cannot be processed due to an unsupported currency - Paypal direct payment

This transaction cannot be processed due to an unsupported currency -
Paypal direct payment

I am working on a website where paypal is used as the payment medium.
While I transfer funds using "Paypal express checkout" and "Paypal Direct
Payment" , in first case,
Paypal express checkout - I am getting a response message as "Pending" and
error as "multicurrency"
Paypal Direct Payment - using credit card, I am getting a message as "This
transaction cannot be processed due to an unsupported currency"
I am using Sandbox and as a user charging 99.00 SEK (Swedish Krona). When
I use US $ it is working fine. So I assume this is due to currency. But I
would like to know how can I make it working on SEK?
Thanks