PHP environment

PHP version: 8.1.33
SAPI: fpm-fcgi
upload_max_filesize: 2M
post_max_size: 8M
max_execution_time: 30
session.save_path: /var/cpanel/php/sessions/ea-php81

Uploads dir check

KYC dir: /home/finovatek/public_html/uploads/kyc
exists: yes
writable: yes

Logs dir check

logs dir: /home/finovatek/public_html/logs
exists: yes
writable: yes

DB connection test

Connected to DB. Server version: 10.11.14-MariaDB
users: exists
wallets: exists
transactions: exists
commission_rates: exists
transaction_commissions: exists

Last app.log (tail 40)

Fatal error:  Uncaught Error: Call to undefined function shell_exec() in /home/finovatek/public_html/debug_env.php:53
Stack trace:
#0 {main}
  thrown in /home/finovatek/public_html/debug_env.php on line 53