a user has encountered the message
WARNING: core/Metrics/Formatter.php(193): Notice - A non well formed numeric value encountered - Matomo 3.9.1 - Please report this message in the Matomo forums: https://forum.matomo.org (please do a search first as it might have been reported already)
when visiting path: /index.php module=CoreAdminHome&action=home&date=today&period=day&idSite=1.
Thank you for the report :+1:
this will likely be fixed in Matomo 3.10.0 (RC release is out
if you still experience this issue afterwards, please re-open this and post a comment. Thanks!