Wrong db_prefix in eBay module?

[blessu]

My problem is:

I'm getting an error while I'm trying to save my shipping configuration in eBay module.

Unknown column 'ps_carrier' in 'field list'

INSERT INTO `nt_ebay_shipping` (
            `id_ebay_profile`,
            `ebay_carrier`,
            `ps_carrier`,
            `extra_fee`,
            `international`,
            `id_zone`
            )
            VALUES(
            '1',
            'DE_SpecialDispatch',
            '35',
            '0',
            '0',
            '1')

I presume that it's caused by db_prefix. In my shop there's an "nt_" prefix, and in error message it seems that the module tries to use "ps_carrier" table. How can I set the module to use correct database tables? Or, maybe I'm wrong and db_prefix is not the cause?

 

Thanks for any help

 

P.S 1.6.1.2