Warning: Parameter 1 to W3_Plugin_TotalCache::ob_callback()

  • “Warning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /srv/users/serverpilot/apps/wordpress/public/wp-includes/functions.php on line 3549”

    Recently i migrate my blog siteground to digitalocean through serverpilot. And now i am facing this problem.

    Its a w3c plugin error or functions.php theme error ?
    site – bestlovesms.in

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