Hello,
There are 2 things to note here. One is that you do not own the AFNI binary directory on that server (which seems like it might be a high-performance cluster, since you start with "module load apps/afni-19.2.04"). Perhaps a newer version is available with a different "module load" call.
In any case, you are getting "Can't open display" error. If X11 is not set up, the afni and suma graphical interfaces will not work.
It seems likely that you are doing a remote login session to that HPC server, but that needs to be via "ssh -X" or "ssh -Y" instead of simply "ssh" (the -X or -Y allow X11 forwarding).
Anyway, how are you logging onto "node37"? Is it via "ssh"? What operating system are you logging into it from?
- rick