Gromacs ERROR at ionization steps

GROMACS version: 2021.2
GROMACS modification: Yes
Here post your question
After solvation of my complex when i go for ionization i got the followinf erroes


kindly help in this regard

Hi,
I guess you got the error from gmx grompp when you have created the tpr file for gmx genion. The errors state that some dihedral angles are badly defined in your topology file. You can check the lines in the topology file. The error is usually due to how the parameters are implemented in the topology files.
As far as I recall other users have similar issues in the forum, maybe it is good to see how they solved it.
\Alessandra