afni.nimh.nih.gov

A few oddities there that you might try to fix.

1. image conversion tools not installed
sudo yum install -y netpbm-progs libpng12

2. Large afni command log - delete the history
rm ~/.afni.log

3. whereami is missing - this is strange. See if it is really in your afni directory
ls ~/abin/whereami
If whereami is there, then your path needs to be updated to include that directory. If it isn't, try redownloading or using another linux package (@update.afni.binaries -package linux_openmp_64)