Nothing happens when I try to whitelist actions

I’m using html code for a sign up form and keep receiving the 403 error.

On following this article: https://www.ownerreservations.com/support/articles/403-error-whitelisting-wordfence

I used the first option by whitelisting the URL but that didn’t work so I tried the second solution by visiting the tools section.

When I press the “Whitelist param from firewall” button it says that “Wordfence is working” but then nothing happens and the blocked action is still there. I have about 15 of these blocked actions with the same url and IP from pressing the “update” button too many times before googling the problem.