@mattab opened this Issue on June 29th 2019 Member

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 /> 
@tsteur commented on July 14th 2019 Member

@diosmosis I can't reproduce this on a regular site when using A/B testing. This might be related to SiteProxy somehow?

@diosmosis commented on July 15th 2019 Member

Yes, it's probably related to ProxySite, though not exactly sure how.

@tsteur commented on October 10th 2019 Member

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.

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