BSP-SLIM - An error found in the submitted ligand strucutre.

Hello, I recently ran Job Q4933 and it executed successfully. I tried to to use the same ligand on another receptor and I consistently get Job was finished with error.
An error found in the submitted ligand strucutre.
Please check if the ligand has correct file format and chemical structure.

I then ran as a control the same input that I used for Job Q4933. The new Job Q4957 unfortunately finished with the same error namely Job was finished with error.
An error found in the submitted ligand strucutre.
Please check if the ligand has correct file format and chemical structure.

I have checked the ligand geometry in PyMol 2.2.3 and its chemical composition with ChemDraw 16.0. The .sdf file (PDB file appended) is interpreted correctly by both PyMol and ChemDraw.

I would appreciate any assistance on how to solve this problem.