Hi Chris,

I managed to fix it by changing the e-mail address. I forget the details but I got it solved.

I am having this same problem.  The "Solved" suggestion does not fix the problem.  There does not appear to be a package for US.  

why on v16 there is no option for "Fiscal ocalization" it seems you need to import COA for every company.

Thanks for your answer.

I tried that but then I get the error message:

The e-mail alias faktu@example.odoo.com is already used by the 
Leverandørfakturaer Journal. Choose another alias or change it on the 
other document.