Steps to reproduce:

1. From the side bar, choose "Reports"
2. From the sub-menu, choose "Audit"

Result:
No response for long time, then a response of "504 Gateway Timeout - The gateway did not receive a timely response from the upstream server or application." is received.

I could not find any useful logs while searching for "audit" in any of logs for zabbix, httpd, mariadb and php-fpm

Expected:
Audit reports page opens.