Undefined index: piwik_pro_ads_enabled

Hi @denisit71 thanks for letting us know about this. Does this maybe appear in the error logs? Or is this error visible in the UI? Where in the UI do you see this?

There’s only one place where this index is accessed and technically any possible error is suppressed while trying to access it so it’s not quite clear how this might happen. We can likely fix this though anyway. It’s just very unexpected that it does that.

Just FYI I will mark it already as resolved as we have created a patch that should prevent this particular issue in the future (in https://github.com/matomo-org/matomo/pull/17233 ). However, be great if you could still reply to do the above question as it’s not clear why this would show an error in the first place.

Hi thomas,
I see the error on the UI and the apache logs:
[Fri Feb 19 10:01:53.918812 2021] [php7:notice] [pid 25598] [client 46.218.X.X:65115] Error in Matomo: Undefined index: piwik_pro_ads_enabled
I get this error when I go ton report page. When I go to administration page I get this error:
Undefined index: items
Below 2 screenshots :
image1
image2
I modified Advertising.php but now I get a Blank page when I go to report.

• This reply was modified 4 years, 1 month ago by denisit71.

Thanks for this @denisit71

> I modified Advertising.php but now I get a Blank page when I go to report.

I’m assuming there’s maybe some typo like a bracket not correctly set etc. You could remove some lines and make this function around line 118 look like this:

    public static function isAdsEnabledInConfig($configGeneralSection)
    {
        $oldSettingValue = false;
        $newSettingValue = @$configGeneralSection['piwik_professional_support_ads_enabled'];
        return (bool) ($newSettingValue || $oldSettingValue);
    }

or even

    public static function isAdsEnabledInConfig($configGeneralSection)
    {
        return true;
    }

Does this help @denisit71 ?

Hi Thomas,
Yes,I forgot a bracket. But now when I go to report, I get:
Undefined index: instance_id
I always get the error below when I go to “administration matomo”:
Undefined index: items

Thanks for this @denisit71

Any chance you could post your system report see https://matomo.org/faq/wordpress/how-do-i-find-and-copy-the-system-report-in-matomo-for-wordpress/ ? The report should be anonymised automatically. Alternatively, you could email this to [email protected] .

These notices/warnings should all be suppressed and not shown. There is likely some PHP setting that forces these messages to show up. Maybe some plugin overwrites the error reporting level and the system report would hopefully help us reproduce this issue. Thanks for this.

Hi thomas,
I found the plugin responsible (crowdsec). I disabled it and now there is no errors.
I will open a topic on their forum.
Thank you very much for your time.

• This reply was modified 4 years ago by denisit71.

Glad you found it @denisit71 . Thanks for finding this out and reaching out to them. Very appreciated.