We switched to php 8 in our server and Matomo doesn’t count visitors anymore.
I got a number of those warnings when clicking on a custom alert link saying Unique visitors decreased to 0, and I wonder if this is the cause.
WARNING: /plugins/Actions/VisitorDetails.php(156): Deprecated - stripos(): Passing null to parameter #1 ($haystack) of type string is deprecated - Matomo 4.6.2 - Please report this message in the Matomo forums: https://forum.matomo.org (please do a search first as it might have been reported already) (Module: Live, Action: getLastVisitsDetails, In CLI mode: false)
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