WARNING: /path/to/piwik/plugins/Bandwidth/Bandwidth.php(115): Recoverable Error - Argument 1 passed to Piwik\Plugins\Bandwidth\Bandwidth::enrichApi() must be an instance of Piwik\DataTable, instance of Piwik\DataTable\Map given - Piwik 2.13.0-rc1 - Please report this message in the Piwik forums: http://forum.piwik.org (please do a search first as it might have been reported already)
path: /index.php?module=CoreHome&action=index&idSite=1&period=day&date=2015-04-25#/module=Referrers&action=index&idSite=1&period=day&date=2015-04-25
Only happened once (gone on refresh).