Anchor Base Value does not fall within the expected range Error

Help
1

Hello, I am running an automation that involves validating the QST registration number using the following website: Validate a QST Registration Number - Revenu Québec
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)

2

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