PHP Fatal error: Uncaught Error: Class "Symfony\Component\Console\Application" not found in /var/www/html/admin/libraries/FWApplication.class.php:11 Stack trace: #0 /var/lib/asterisk/bin/fwconsole(66): include() #1 {main} thrown in /var/www/html/admin/

FreePBX Security
41

Unless you want to setup a honeypot and see the realtime feed of exploits, this is definitely a risky move!