MacBook Pro getting logout message while using VLC

While watching movies using VLC on my MacBook Pro every 20 minutes I get the message "Are you sure you want to quit all appilcations and log out now ?"
I press cancel and it goes away for another 20 minutes. Very annoying.
Tried uninstalling and reinstalling VLC. Also changed the power time outs.

From the menu bar, select
 ▹ System Preferences... ▹ Security & Privacy ▹ General
If there's a closed padlock icon in the lower left corner of the preference pane, you may need to click it to unlock the settings. Enter your login password when prompted.
Click Advanced, then uncheck the box marked Log out after 20 minutes of inactivity in the sheet that opens. Click OK, then quit System Preferences.

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