This was reported in several forum threads for example this message
The problem occurs while downloading Scheduled reports, while using custom date range.
For example on demo at: report request I get:
Fatal error: Call to undefined method Piwik_DataTable_Array::getRows() in core/ReportRenderer/Pdf.php on line 333
Let's add a test to replicate this bug when fixing it.
When "Sending email report" is clicked I see the HTTP request replying with a notice:
Notice:</strong> <i>Undefined index: range</i> in <b>/plugins/PDFReports/PDFReports.php</b> on line <b>340</b>
In 8575c02aa74577c3674c367dc32c87f0865df00d: Fixed remaining notice refs #4014
Moving 1.x closed tickets to 2.0