Custome Branding settings Issue

Dear All,

I’ve installed Piwik and Works fine but i’m unable to do Custome logo Branding showing me error " Uploading files is not enabled in your PHP configuration. To upload your custom logo please set file_uploads=1 in php.ini and restart your webserver.". moreever file_uploads is ON and even file upload works fine in joomla which is my currently running website.

Attached Error Snaps.