Credit notes

-- HikaShop version -- : 6.4.1
-- Joomla version -- : 6.0.3
-- PHP version -- : 8.4
-- Browser(s) name and version -- : Edge Version 147.0.3912.98

Hi,
Please how can I get ordered numbers in the Factor X credit note all my credit notes display the same number.
Are there any settings for this, or else please how can I get different letters and numbers on the credit notes?

Kind regards
Hans Peter Betzler