After upgrading to Matomo 3.13.1 and latest version of plugins, including MultiChannelConversionAttribution 3.0.7, we’re seeing warnings:
WARNING: /var/www/matomo/plugins/CoreVisualizations/Visualizations/HtmlTable.php(228): Notice - Undefined index: nb_attribution_revenue_firstInteraction - Hawthorne 3.13.1 - Please report this message in the Hawthorne forums: https://forum.matomo.org (please do a search first as it might have been reported already) (Module: MultiChannelConversionAttribution, Action: getChannelAttribution, In CLI mode: false)
WARNING: /var/www/matomo/core/DataTable/Row.php(188): Warning - Illegal offset type - Hawthorne 3.13.1 - Please report this message in the Hawthorne forums: https://forum.matomo.org (please do a search first as it might have been reported already) (Module: MultiChannelConversionAttribution, Action: getChannelAttribution, In CLI mode: false)