This issue is with the duplicate entry in the esx.conf file. There is a faulty entry in the esx.conf file which needs to be deleted.
For Example :- /vmkdevmgr/logical/pci#p00:47:00.0#0/alias = "vmhba2"
NOTE :- ESX.CONF FILE IS THE DATABASE FOR YOUR ESXI SERVER. ANY CHANGES IN THE FILE MAY AFFECT THE CONFIGURATION OF THE SERVER. I WOULD RECOMMEND TO OPEN THE SERVICE REQUEST WITH VMWARE TECHNICAL SUPPORT TEAM AND CHECK ON THIS.