Hi,
I created a lipid bilayer using coarse grain dynamics and also created coarse garin structure of a ZnO nanocluster.
I am placing this nanocluster on the bilayer and while trying to run dynamics task in setup option of mesocite module with the following parameters:

Ensemble : NVE, Temperature : 298.00 K, Timestep : 20.00 fs, Number of steps : 50000, Duration : 1000 ps, Initial velocities : Random
getting an error message:

Dynamics calculation - Aborting dynamics.

An unphysical integration step (>100 Angstroms) has been detected. Try relaxing the structure with geometry optimization, reducing the time step, reducing the temperature or a combination of these.
I have tried a lot to resolve this error but could not; getting same message again and again.
Kindly suggest what should I do to run dynamics.

Regards,
Deepali Sharma