pair_style hybrid/overlay issue

Hi all,
I have been working calcite/water system by using a published force field, I am getting an error at some point shown below. I am pretty sure about my executables and packages installed are fine. I am suspecting the issue is with the pair_style hybrid/overlay because I have never used this style before, and related more or less to the below part of the force field file.
Kindly check below the error and part of the force field…
Thanks a lot in advance
Sarah…

The error I am experiencing is : ERROR: Illegal pair_style command (…/pair_lj_cut.cpp:430)

Hi all,
I have been working calcite/water system by using a published force field, I
am getting an error at some point shown below. I am pretty sure about my
executables and packages installed are fine. I am suspecting the issue is
with the pair_style hybrid/overlay because I have never used this style
before, and related more or less to the below part of the force field file.
Kindly check below the error and part of the force field..

please check whether your executable has all the various pair
substyles included.

the parser logic of the pair_style hybrid line is that all "words",
that are not recognized as pair style, will be passed as arguments to
the pair style to the left. for example, if you don't have lj/mdf
included in your executable, then the arguments to lj/cut will become
lj/cut 9.0 lj/mdf 6.0 9.0, which will lead to the "illegal pair_style
command" error message you are reporting.

axel.