qt.qpa.plugin error

root@debian:/ chmod +x unetbootin-linux64-702.bin
root@debian:/./unetbootin-linux64-702.bin
qt.qpa.xcb: could not connect to display
qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even though it was found.
This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.