Error 500 generating PDF report after Update Piwik

Hi!

I just update automaticaly Piwik (1.11 to 1.12) and I try to generate PDF Report

Updating from 1.11 to 1.12 says that databases have decraped structure
Update automaticaly says all ok

I install GeoLiteCity and regerating report data erasing datatables piwik_archive* from months I need

Now I try ti generate email PDF report

But Web server report error 500
and this is error.log message from Apache

PHP Fatal error: Call to undefined method Piwik_DataTable_Array::getRows() in /var/www/piwik/plugins/MultiSites/API.php on line 256

I need some help

Can anyone help me about ?

Thanks

Select another period than “Date range” and it should work (it will be fixed in next release 1.12.1 in 1 month)