Custom certificate (plugin)

Good afternoon,

I am creating a two-page certificate, on page 1 I am adding the verification code, and I need it to also be displayed on page 2, but when adding the field on the second page, it generates a different code than the one on the page 1. Could I get the same verification code on both pages?

Thanks for your help.
Moodle 4.1 Customcert 4.1.1