"Last 300 Error Log" page blank

For all my cpanel accounts on my server the "last 300 errors" page is blank:
I have standard theme.

When i hover over the last 300 errors in cpanel i get a "disabled" icon on the mouse pointer.

I created a new blank account and run the domain.com/hitheregkg.html test. No result.
Nothing about hitheregkg.html in/usr/local/apache/logs/error_log.

Can you help me find a sollution?

 

Ok, I don't need 404 errors in the log, but the real issue here is that nothing at all is in the "last 300 errors" in the cpanel interface.

Any input on that?

 

I'm pretty sure someone of my sites has produced errors. However, is there a way I can produce an error to be 100% sure? Would any php script with a syntax error do?

 

You just told me 404-errors don't show up in the last 300 error log by default. I don't want to change defaults.
A 500 error would show up, right?

 

Anyway, i made a clean account and made a single php file with:
<?php require('nonexisting.php'); ?>
nonexisting.php does not exist so I got an 500 error.
This produced an error_log in my public_html.

However, nothing was logged in the "Last 300 errors" in cPanel interface. Should'nt it?

 

Apology accepted ;-)

 

Ok, I tried that. I got a 401 Unauthorized on the page, but nothing in the log.