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The Following below steps need to follow.
Step [1] – Go To System> Tools > Cache Management
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Step [2] – Once Click on Cache Management, redirects on below
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Step [3] – Left Side, There is Menu Drop Down Option as below
Mass Actions
Select All
Unselect All
Select Visible
UnSelect Visible
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Click on Select All Option
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Step [4] – Once All Cache Types has been selected, click on Flush Magento Cache & Flush Cache Storage Button
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Once Flush Cache done, message will be displayed as below
“The Magento cache storage has been flushed.”
Finally Flush Cache has been done.