Cloudflare ID filter

We all know that when we get an issue Cloudflare page produces a Cloudflare ID and detects our IP that we use, when I check at the security events and filter the Cloudflare ID. It doesn’t display the issue. How can we solve this if we don’t know where did you got the error? I also did check Security - Custom rules. Please help!

What you are referencing is security events.
All security events that produce rayID will be logged in your dashboard.

What is the page you are seeing(screenshot)?

Is it a 5xx error?

If this is the case that request will not show up in your dashboard because it was not blocked by your WAF.