CentOS 7, how to prevent any process from suspending my server?

I have a server running CentOS 7 with Gui.
It should be running 24x7 but it keeps suspending itself after a few days of inactivity.

"Automatic suspend" is already set to "off"
The computer is only connected to a local network.
The only third party process I am running is a license server.

I inspected the log, something is asking for a suspend, how can I find what is it?
Or how can I prevent anythings from suspending my server?

suspicous system log:

Oct 27 22:33:37 xxxx dbus-daemon: dbus[684]: [system] Activating via systemd: service name='net.reactivated.Fprint' unit='fprintd.service'
Oct 27 22:33:37 xxxx dbus[684]: [system] Activating via systemd: service name='net.reactivated.Fprint' unit='fprintd.service'
Oct 27 22:33:37 xxxx systemd: Starting Fingerprint Authentication Daemon...
Oct 27 22:33:37 xxxx dbus-daemon: dbus[684]: [system] Successfully activated service 'net.reactivated.Fprint'
Oct 27 22:33:37 xxxx dbus[684]: [system] Successfully activated service 'net.reactivated.Fprint'
Oct 27 22:33:37 xxxx systemd: Started Fingerprint Authentication Daemon.
Oct 27 22:33:37 xxxx fprintd: Launching FprintObject
Oct 27 22:33:37 xxxx fprintd: ** Message: D-Bus service launched with name: net.reactivated.Fprint
Oct 27 22:33:37 xxxx fprintd: ** Message: entering main loop
Oct 27 22:33:39 xxxx NetworkManager[739]: <info>  [1572186818.9235] manager: sleep requested (sleeping: no  enabled: yes)
Oct 27 22:33:39 xxxx NetworkManager[739]: <info>  [1572186819.3313] manager: sleeping...
Oct 27 22:33:39 xxxx NetworkManager[739]: <info>  [1572186819.8106] manager: NetworkManager state is now ASLEEP
Oct 27 22:33:40 xxxx dbus-daemon: dbus[684]: [system] Activating via systemd: service name='org.freedesktop.nm_dispatcher' unit='dbus-org.freedesktop.nm-dispatcher.service'
Oct 27 22:33:40 xxxx dbus[684]: [system] Activating via systemd: service name='org.freedesktop.nm_dispatcher' unit='dbus-org.freedesktop.nm-dispatcher.service'
Oct 27 22:33:40 xxxx systemd: Starting Network Manager Script Dispatcher Service...
Oct 27 22:33:42 xxxx systemd-logind: Delay lock is active (UID 0/root, PID 3029/gnome-shell) but inhibitor timeout is reached.
Oct 27 22:33:42 xxxx dbus-daemon: dbus[684]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
Oct 27 22:33:42 xxxx dbus[684]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
Oct 27 22:33:43 xxxx nm-dispatcher: req:1 'connectivity-change': new request (4 scripts)
Oct 27 22:33:43 xxxx nm-dispatcher: req:1 'connectivity-change': start running ordered scripts...
Oct 27 22:33:43 xxxx systemd: Started Network Manager Script Dispatcher Service.
Oct 27 22:33:43 xxxx systemd: Reached target Sleep.
Oct 27 22:33:43 xxxx systemd: Starting Sleep.
Oct 27 22:33:43 xxxx systemd: Starting Suspend...
Oct 27 22:33:43 xxxx systemd-sleep: Suspending system...
Oct 27 22:33:44 xxxx kernel: PM: Syncing filesystems ... done.
Oct 28 14:14:33 xxxx kernel: Freezing user space processes ... (elapsed 0.020 seconds) done.
Oct 28 14:14:33 xxxx kernel: Freezing remaining freezable tasks ... (elapsed 0.000 seconds) done.
Oct 28 14:14:33 xxxx kernel: Suspending console(s) (use no_console_suspend to debug)
Oct 28 14:14:33 xxxx kernel: sd 2:0:0:0: [sda] Synchronizing SCSI cache
Oct 28 14:14:33 xxxx kernel: sd 2:0:0:0: [sda] Stopping disk
Oct 28 14:14:33 xxxx kernel: serial 00:09: disabled
Oct 28 14:14:33 xxxx kernel: serial 00:09: System wakeup disabled by ACPI