Maybe related to A/B testing but got this warning 20 times on the demo:
WARNING: Trying to add two strings in DataTable\Row::sumRowArray: 7.4% + 5.5% for column avg_nb_conversions_goal_7 in row # ['label' => 'Total', 'nb_visits' => 668, 'nb_visits_entered' => 568, 'nb_uniq_visitors' => , 'avg_nb_conversions_goal_7' => '7.4%'] ['segment' => 'abtesting_experiment==AffiliateLinkEffectiveness,abtesting_variation==original'] [idsubtable = ]<br />
@diosmosis I can't reproduce this on a regular site when using A/B testing. This might be related to SiteProxy somehow?
Yes, it's probably related to ProxySite, though not exactly sure how.
To find the root cause for these issues better we have changed the file log to include a trace in https://github.com/matomo-org/matomo/pull/14961
So when this issue happens again be good to get a trace and then we can maybe look into this further.
Reckon it's been fixed in the meantime