ESXi 6.7 caused error “The web server returned a bad status line: ””

I just upgrade 1 of my ESXi from 6.5 to 6.7 and now all I get is errors (6.5 still working just fine thought):

20180514 14:35:25 Connection to https://xxxxxxx
20180514 14:35:25 Found pywbem version 0.7.0
20180514 14:35:25 Connection error, disable SSL certification verification (probably patched pywbem)
20180514 14:35:25 Check classe OMC_SMASHFirmwareIdentity
20180514 14:35:28 Unknown CIM Error: (0, “The web server returned a bad status line: ””)
20180514 14:35:28 Check classe CIM_Chassis
20180514 14:35:30 Unknown CIM Error: (0, “The web server returned a bad status line: ””)
20180514 14:35:30 Check classe CIM_Card
20180514 14:35:32 Unknown CIM Error: (0, “The web server returned a bad status line: ””)
20180514 14:35:32 Check classe CIM_ComputerSystem
20180514 14:35:34 Unknown CIM Error: (0, “The web server returned a bad status line: ””)
20180514 14:35:34 Check classe CIM_NumericSensor
20180514 14:35:36 Unknown CIM Error: (0, “The web server returned a bad status line: ””)
20180514 14:35:36 Check classe CIM_Memory
….
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