Anchor Base Value does not fall within the expected range Error

Hello, I am running an automation that involves validating the QST registration number using the following website: https://entreprises.revenuquebec.ca/EntNa/SX/SX00/SX00.SXCLT20A.ValiderInscription/SXCLT20AA?CLNG=A
I am using the anchor base activity when I input the registration number, but I keep getting the “Value does not fall within the expected range” error.

Here my workflow:
TEST.xaml (7.9 KB)

why you don’t use the type into activity?, i think the registration number field is not relative