'No default Proper Dih. types' error

GROMACS version: 2020.4
GROMACS modification: Yes (compiled with plumed 2.7.0)
Force field: charmm36-jul2021.ff

Hi,

I’m trying to perform MD simulation of peptides composed of D-amino acids.
However, I got the following error when I was trying to add ions to my system.

ERROR 1 [file topol.top, line 1159]:
No default Proper Dih. types

The corresponding line in the topol.top was the dihedral angle composed of C, CA, CB, and CG atoms in D-glutamic acid.
In this case, how can I solve this problem?

Thank you in advance!