Supervisor won't work on Centos 7 (its crashing everything)

I have tried everything I could google. I setup custom systemd script for supervisor.
Supervisor when starting with systemd displays status message:

supervisord.service - supervisord - Supervisor process control system for UNIX
   Loaded: loaded (/usr/lib/systemd/system/supervisord.service; enabled; vendor preset: disabled)
   Active: failed (Result: exit-code) since Tue 2020-06-16 10:20:11 CEST; 18s ago
     Docs: http://supervisord.org
  Process: 771 ExecStart=/bin/supervisord -c /etc/supervisord/supervisord.conf (code=exited, status=203/EXEC)

Jun 16 10:20:11 server systemd[1]: Starting supervisord - Supervisor process control system for UNIX...
Jun 16 10:20:11 server systemd[1]: supervisord.service: control process exited, code=exited status=203
Jun 16 10:20:11 server systemd[1]: Failed to start supervisord - Supervisor process control system for UNIX.
Jun 16 10:20:11 server systemd[1]: Unit supervisord.service entered failed state.
Jun 16 10:20:11 server systemd[1]: supervisord.service failed.

HTTPS gives this:
" Sorry!
We will be back soon."
HTTP works “fine” when you start initial company setup. But as soon as it starts loading it returns server error.

This one is driving me mad. I am out of ideas.

Server info:
Centos 7
6 GB RAM
80 GB SSD
Magento 2 installed alongside
Bench installed on python 3.6 (tried 3.8 also)