Your xpath seems to be fine. It also seems you're trying to locate a check-box of Google reCAPTCHA. Google reCAPTCHA is integrated to the page using iFrame.

Below is your screenshot with some additional marker from me.

So you have to switch to the iframe first. To do that examine your html structure and switch to the required iFrame before you're trying to interact with the item.

For details see this post: Unable to switch to frame which is inside an iframe

Your xpath seems to be fine. It also seems you're trying to locate a check-box of Google reCAPTCHA. Google reCAPTCHA is integrated to the page using iFrame.

Below is your screenshot with some additional marker from me.

So you have to switch to the iframe first. To do that examine your html structure and switch to the required iFrame before you're trying to interact with the item.

For details see this post: How to locate an element which is inside the iframe?