Nginx rewrite or internal redirection cycle while internally redirecting to error page - wp site

Hi everyone,
I'm a newbie on the Nginx server - Ispconfig 3, used for a wordpres site.
I am successfully blocking some spam / intrusive bot adding in the nginx Directives section of the Options this:

Code:

if ($http_user_agent ~* (SemrushBot|Semrush|etc|etc) )
{ return 403; }

But blocking them gives me this return in the error log file:

Code:

rewrite or internal redirection cycle while internally redirecting to "/error/403.html"

Before the last code in the Ispconfig's Nginx directive section there is this

Code:

try_files $uri $uri/ /index.php?$args;

The /error directory is in the same filesystem of the worpress site and have the same owner, and the errors files too: /error/400.html (and so far so fort).
I have checked already for the same problem but I have found nothing right about this and I don't want to make some mistake copying the few things I have found about other kind of sites .
I hope those information are enough and I thanks in advance for any help

 

Basically you will need this for WP site to work, so go back to that to get a working WP site again. I can't comment on your bot blocking code as I never used them, so wait for or do consult to those who are using them.

 

Thanks, I didn't touch this line of code, Wp is working.
My problem is only in the error pages: Nginx make an error when redirct the bad bpts to them.

 

Did you check that site vhost because so far that I know an ISPConfig nginx server block already defined error 403 page so your code may be conflicting.