I Have uploaded my website and I am getting the following error after some time and after I clear the cookies of my browser, it started working fine. This error often occurs when I tried to open any link that needs user authentication it redirects to the login page one or two times then after that this error happens. I am also using some javascript 3rd party tools for live chat.
403 - Forbidden: Access is denied. You do not have permission to view this directory or page using the credentials that you supplied.
I have resolved this error by disabling the Web Application Firewall (ModSecurity) from my Plesk panel.