This error arises when the specification of the short range potentials
is different in the FIELD and TABLE files. This usually means that the
order of specification of the potentials is different. When
DL_POLY_2 finds a change in the order of specification, it assumes
that the user has forgotten to enter one.
Action:
Check the FIELD and TABLE files. Make sure that you correctly specify
the pair potentials in the FIELD file, indicating which ones are to be
presented in the TABLE file. Then check the TABLE file to make sure
all the tabulated potentials are present in the order the FIELD file
indicates.