rickycandra Hello!
404: refers to the page visited does not exist or the file path cannot be found.
Here, you need to distinguish between the static page (HTML) or the dynamic page (PHP, etc.) that you visit.
If you are static page access 404, it may be a file path error, or a site directory binding error.
At this time, check whether the file path is correct and whether the site domain name binding directory is correct.
If it is dynamic page 404, it may be a pseudo static setting error. You need to check whether the pseudo-static is set correctly.
At the same time, if PHP does not start normally or runs too high concurrency, it may also lead to site 404
You need to check the PHP runtime to see if it is working properly.
