The VAT Posting Setup does not exist - Navision 2016

Hi All, 

I currently have just had an issue with the following;

When creating a purchase order, after setting up Standard Purchase Codes I wanted to use this for the first time but received a error message showing:

The VAT Posting Setup does not exist. Identification fields and values: VAT Bus. Posting Group='DOMESTIC', VAT Prod. Posting Group="

Could you kindly help me resolve this?

Thanks in advance!