HTTP Response Code 503

I am designing a website for a client and received the following Wordfence error when I tried to view the finished website on my tablet.

Your access to this site has been limited by the site owner (HTTP response code 503). If you think you have been blocked in error, contact the owner of this site for assistance. If you are a WordPress user with administrative privileges on this site, please enter your email address in the box below and click “Send”. You will then receive an email that helps you regain access.

Block Technical Data

Block Reason: Blocked by login security setting

Time: Tue, 18 Jun 2024 8:55:49 GMT

I entered my email address with administrator privileges but never received the email?