A Fraktjakt error

Good evening..

I have just installed the Fraktjakt mod and got an error..

[i]Fatal error: Default value for parameters with a class type hint can only be NULL in /xxxxx/xxxxx//xxxxx/xxxxx/ext/fraktjakt/Client.php on line 46[/i]

Im using Litecart: 222
Mod is set on: Test

Show your module configuration

Status: activated
Consignior ID: none
Consignior key: none
Gateway: test
Book: yes
Handling fee: none
Taxclass: Standard moms
Priority: 1

Sign up for a test account on their site and fill in the consignor id and key.