First pdb file contains an unknown amino acid or nucleic acid base HID

Dear developers,
I run a protein-ligand docking.But I found the following error:
There was an inconsistency in your data

Error message

First pdb file contains an unknown amino acid or nucleic acid base HID

Make sure to use three letter code for bases and amino acid

(upload://8XZyM856cN0u5SXEq7zRvda5Fk4.png) http://alcazar.science.uu.nl/serviceresults/HADDOCK2.2/6160521422/matrip74
How do I solve this problem?

Thank you!

HID is not a proper amino-acid name according to the PDB… It is used in AMBER and some other software to indicate the protonation state. Simply change it to HIS

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