troubleshooting perl application bug

Hi, I am looking for an experienced Perl programmer who can help troubleshoot an issue I'm having with my Perl application. I am running into some post requests that are returning 403 errors. I have made recent changes to both my code and my server configuration, so I am not sure which change might have caused the issue. If you have experience in troubleshooting Perl applications and finding bugs, please contact me and let me know how you can help. Thanks!