neighbors error with minimization and packmol

Hey dear all !

I’ve tried to run a minimization job for a mixture of some simple organic molecules (water, CO2, …)
I have used packmol to create the initial geometry of a box with dimensions (21.915,10.9575,10.9575) to get a randomly distributed mixture of the molecules.
Now, i want to minimize the mixture energy so I’ve created the necessary data file and tried to run the minimization job with sd style.

then, i got the following error message:

ERROR on proc 0: Neighbor list overflow, boost neigh_modify one or page
rank 0 in job 120 arak_43420 caused collective abort of all ranks
exit status of rank 0: killed by signal 9

I assume it has something to do with too many neighbors each atom has, but not sure as how to overcome this problem (Can I just use the neigh_modify option without fear of unphysical results? how should I know the right values ? ).
Is this problem often shows up with working with packmol to generate initial structures ?

Your help will be greatly appreciated !

You can certainly follow the instructions the error message
gave you and boost the "one" and/or "page" setting.

However, you probably want to figure out why you require
so many neighbors per atom. It's likely you are not setting
up the system you think you are, i.e. that you have misused
PackMol or are misinterpreting its output.

Steve