The order xyz has a tax rate MwSt Schweiz 8.1% which could not be found

Hi,
I have a weird problem I dont understand.
In the taxes in Hikashop, I get many messages like:
The order xyz has a tax rate MwSt Schweiz 8.1% which could not be found.

When I check, this tax rate is defined and listed (see attachement).

How can I further investigate and fix this problem ?

Found the "error". This message is displayed, because not all tax rates were displayed because of the default "30" display limits filter.
You can ignore my post.
.