Error while uploading files to Cpanel accounts >> unknown bytes complete FAILED! :Upload canceled: VIRUS DETECTED! ( Access denied. ERROR )

If you are getting the following error while uploading files to the Cpanel accounts :

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unknown bytes complete FAILED! :Upload
canceled: VIRUS DETECTED! ( Access denied. ERROR )
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Go to WHM >> Manage Plugins.

There you can see the different add-ons. Check for clamavconnector.
If it is not installed, install it. If it is there, uninstall and install again.