problems with page cloning

Good morning dear friends, I decided to clone a course, I bought it, I recorded the classes, I asked for a refund, I fixed all the domain and hosting issues, I'm using infinity free, and I planned to edit the site through Google Optimize, but I ended up making a mistake to leave the part of cloning the page itself for the end, and now I'm having difficulties in this process. I've tried crtl + u, I've tried putting "viewsource:" before "https", I used a software called darcyripper, and the same thing happens when I search for the link, the page simply opens in white and nothing else. do you know how i can solve this? Is there any other program capable of doing this cloning?