Hi Milind More
I am more than happy to have your reply and my problem is resolved.
I was already using the latest version of PHP as you mentioned and I am not using Lite Speed cache or Object cache pro as well.
My problem is solved by disabling a Bluehost MU Cache (Cache Level=0). Maybe that plugin was creating a conflict with wp super cache plugin.
Thanks A lot
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This reply was modified 2 years, 1 month ago by techsaainfo. Reason: Some typing mistakes