ADL: Error about openning input pdb file of ligand

Shabnam N shabnamn2001 at
Fri May 15 09:00:07 PDT 2020

I intended to dock "Azithromycin" molecule as a ligand with an enzyme.
When I open input pdb file of the ligand (Azithromycin), I receive an error message as below:

"Azithromycin: :UNK1:H49 and Azithromycin: :UNK1:H49 have the same coordinates"

Please help me to solve this error.
Can I delete H49 (hydrogen number 49) in Azithromycin pdb file, or not? If I can delete H49, please mention a valid reference article for citation.
Shabnam N.

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