reCaptcha v3 retourne l'erreur "Google reCaptcha : clé de site non valide."

Hello everyone,

I’ve been trying to figure out how to get Google reCAPTCHA v3 to work for two hours, and I’m having a problem.
I’ve entered the Google reCAPTCHA v3: Site key and the Google reCAPTCHA v3: Secret key correctly, but on my form, the error “Google reCaptcha: Invalid site key” is returned in the “brxe-alert danger” DOM ​​element.

Honestly, I don’t understand why…