Problem with a empty box in my contact form 7

I use 2 contact forms 7 in my site with Google recaptcha v2 :

https://visite360pro.com/contact/#formulaire

https://visite360pro.com/#contactez-nous

Everything is fine when i am log as admin on the site the form dont show the empty box and work normaly.

But in private mode or non admin mode on Chrome, i can see a empty field box near the recatcha that change the look of the site.

The form wont work and wont send msg (because of this box i think)

I think there is a conflict with Google recaptcha and contact form 7 and perhaps another plug in.

If someone can give me a clue to help me to solve this problem, i will appreciate.

Regards

The page I need help with: [log in to see the link]