I am having problems with my run that during ligand restraining i am getting an error i.e. Fatal err

GROMACS version:2021
I am having problems with my run that during ligand restraining i am getting an error i.e. Fatal error:

The spacing of the decimal points in file 2.0.gro is not consistent for x, y and z, please help me with this.

.gro files require a fixed format. Yours is not correct. See File formats — GROMACS 2021.2 documentation