The Admin page is not working, but on the store page no VAT no field is displayd

Company field is present.
As I enable the Vat debug, I now have the first log file:
2024-06-16 16:02:36: checkVatIsRefundable(, )
Returning ()
2024-06-16 16:05:13: checkVatIsRefundable(, )
Returning ()
2024-06-16 16:05:29: checkVatIsRefundable(, )
Returning ()