i am using auto dock. during the protein preparation i added the add polar hydrogen bond. when i went to save, it is showing error that the protein has 84 non bonded atoms
Simply ingnoring it is not a solution. First note down those all non-bonded atom. Then restart your docking process. After removing water, ligand and hatom from selecting in string in left side in listed protein chain check that detected non-bonded atom & and select them. Then non-bonded atom presenting chain you have to select. Delete this selection. Now you good to go.