VAT double line on standard invoice template

VAT double line on standard invoice template

Hello,

I am currently blocked to send invoice as when I issue an invoice from books, I have 2 lines for sales taxes rates.
I have no idea why this is happening as I should only have 1 and I don't know where to setup and update it.
I want to specify that we use multi branches, multi-currencies in case it would impact.
Thanks in advance for your support.
Regards,
Marion