Recaptcha is not accepted by newsletter form

[lindenquell]

Check if your issue exists

• [X] I confirm that i've search that my issue does not already exists

Your prestashop version

8.1.1

Eicaptcha version

2.4.x

Do you use a specific theme ?

Greenkart

Describe the bug

newsletter subscription: when i click on "register", it says that i should first confirm the recaptcha although it is checked.

Screenshots

Additional context

with presta shop standard theme, it works. must be a theme problem