Error 404 after clearing cache

My issue is very simple.

I wanted to change the home page of my website. I did so in the settings menu, but the webpage was not showing the changes.

I looked up in Google what the problem could be. People recommended clearing the cache under “LiteSpeed Cache > Toolbox > Purge All”.

Now, the page says error 404. Why? How do I fix it? I need to.

Thanks in advance.

The page I need help with: [log in to see the link]