Klarna integration guide

Error code: Connection timed out
Error: CookComputing.XmlRpc.XmlRpcInvalidParametersException
Fatal error: Cannot redeclare class pear in /usr/lib/php/PEAR.ph
How do I add a reference name in the invoice?
I cannot log in to the beta test
Invoices are created in double in Klarnas system
It says ”testinvoice” on the invoice, i'm not in test mode
Special characters like ö,ä and å are not shown correctly
There is no VAT for the goods
Where can I get the pclass file