viyoriya 
when I do systemctl status NetworkManager.service` it outputs this:
● NetworkManager.service - Network Manager
   Loaded: loaded (/usr/lib/systemd/system/NetworkManager.service; enabled; ven>
  Drop-In: /usr/lib64/systemd/system/NetworkManager.service.d
           └─NetworkManager-ovs.conf
   Active: active (running) since Wed 2019-09-11 08:13:38 EDT; 8h ago
     Docs: man:NetworkManager(8)
 Main PID: 634 (NetworkManager)
    Tasks: 3 (limit: 4560)
   Memory: 23.3M
   CGroup: /system.slice/NetworkManager.service
           └─634 /usr/sbin/NetworkManager --no-daemon
Warning: Journal has been rotated since unit was started. Log output is incompl>
lines 1-13/13 (END)
When I do nmcli dev status it outputs this
DEVICE  TYPE      STATE        CONNECTION 
enp2s0  ethernet  unavailable  --         
lo      loopback  unmanaged    --
         
There is no folder called wpa_supplicant in /etc/ and I think the computer doesn't recognize the wifi card
(sorry for the late reply I had to sleep and school)