I had installed MFIX in a cluster, however, I am unable to open MFIX program and I see the following error.
I am using Windows 10.
The mfix command is for the GUI, which does not work through Putty.
You can use the build_mfixsolver command to build an MFIX solver, then run mfixsolver for your case. Or, build and run the solver from source to run it on remote cluster.
Or, configure a remote desktop/VNC session if supported by your cluster (to run the GUI).