For example, if I try to open a video with VLC, I can see it appear on the System monitor but it's quickly listed with red and disappears.
It could be RAM related. I have 4GB and it's shown as 70% used. But I have a 4GB swap file and it's not even 1/4 used.
I'm new to Linux.
EDIT: Terminal message
2023/06/05 17:30:51.401887 system_key.go:129: cannot determine nfs usage in generateSystemKey: cannot parse /etc/fstab: cannot parse check pass number: "1o"
VLC media player 3.0.18 Vetinari (revision 3.0.18-0-ge9eceaed4d) [00005569c51d7460] main libvlc: Running vlc with the default interface. Use 'cvlc' to use vlc without interface.
Qt: Session management error: Could not open network socket
Fontconfig warning: FcPattern object weight does not accept value [40 200) Segmentation fault (core dumped)