Remove custom URL from Cloudflare

Hi,

I have a website named ‘evorese’ and when I enter on it I go thru Cloudflare protection and after that my URL transform from ‘evorese.com’ to ‘https://evorese.com/cf_chl_jschl_tk=f9efdc993b48a3db9bbfc34a53c0a8d996673c90-1592989402-0 [etc]’ what should I do to remove that custom URL?

                                                                      Best regards, Bogdan, 
                                                                                    Evorese technical engineer

Thats hCaptcha verifying the visitor is real. Do you have ‘under attack’ turned on? Any custom page rules, firewall rules, etc?