WARNING: Using ‘neigh_modify every 1 delay 0 check yes’ setting during minimization (src/min.cpp:168)

what does this mean? I was using meam potentials and the code executed without further errors.

It simply is telling you that LAMMPS changed the neighboring paramters
for dynamics to special values during the minimization (then it will switch them
back when minimization is done). That’s all. Nothing to worry about.