Issue with qt in Ubuntu 24.04. MFIX has been installed. But not opening

Hello,
I have installed MFIX 24.4 on Ubuntu 24.04
It installed successfully.

But whenever I am trying to execute the mfix command and start mfix I am getting this error message on qt

"qt.qpa.xcb: could not connect to display :1.0

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.

Available platform plugins are: eglfs, minimal, minimalegl, offscreen, vnc, webgl, xcb."

I have also attached a screenshot this message.

Kindly help me in resolving this issue. Any suggestion will be highly appreciated.

Thanks, and Regards,

Debashis

Hello,
Is there any update on this request ?
Kindly let me know.
I am still getting the error message on qt.
Thanks and Best Regards,
Debashis