Bug: Weekly Goals fail both in overview and on details page

[anonymous-matomo-user]

Hello,

there is a bug when I call piwik statistics and the timeframe is "week" then the goal statistics graph does show an error.
The error does not appear if the timeframe is different (day, month or year). The behaviour applies both for websites with goals defined and those without goals.

Version: Piwik 1.5.1

Error Report follows:

There is an error. Please report the message and full backtrace in the Piwik forums (please do a Search first as it might have been reported already!).

Notice: Undefined offset: 1297814400 in /srv/www/htdocs/piwik/core/Archive/Array/IndexedByDate.php on line 135

Backtrace -->
#0 Piwik_ErrorHandler(...) called at [Piwik_Archive_Array_IndexedByDate->getDataTableFromNumeric(...) called at /srv/www/htdocs/piwik/plugins/Goals/API.php:302#2 Piwik_Goals_API->get(...) called at [call_user_func_array(...) called at /srv/www/htdocs/piwik/core/API/Proxy.php:179#4 Piwik_API_Proxy->call(...) called at [Piwik_API_Request->process(...) called at /srv/www/htdocs/piwik/core/ViewDataTable.php:391#6 Piwik_ViewDataTable->loadDataTableFromAPI(...) called at [Piwik_ViewDataTable_GenerateGraphData_ChartEvolution->loadDataTableFromAPI(...) called at /srv/www/htdocs/piwik/core/ViewDataTable/GenerateGraphData.php:98#8 Piwik_ViewDataTable_GenerateGraphData->main(...) called at [Piwik_Controller->renderView(...) called at /srv/www/htdocs/piwik/plugins/Goals/Controller.php:333#10 Piwik_Goals_Controller->getEvolutionGraph(...) called at [call_user_func_array(...) called at /srv/www/htdocs/piwik/core/FrontController.php:136#12 Piwik_FrontController->dispatch(...) called at [Piwik_FrontController->fetchDispatch(...) called at /srv/www/htdocs/piwik/core/ViewDataTable/GenerateGraphHTML.php:148#14 Piwik_ViewDataTable_GenerateGraphHTML->getGraphData(...) called at [Piwik_ViewDataTable_GenerateGraphHTML->buildView(...) called at /srv/www/htdocs/piwik/core/ViewDataTable/GenerateGraphHTML.php:92#16 Piwik_ViewDataTable_GenerateGraphHTML->main(...) called at [Piwik_Controller->renderView(...) called at /srv/www/htdocs/piwik/plugins/Goals/Controller.php:333#18 Piwik_Goals_Controller->getEvolutionGraph(...) called at [Piwik_Goals_Controller->getOverviewView(...) called at /srv/www/htdocs/piwik/plugins/Goals/Controller.php:218#20 Piwik_Goals_Controller->widgetGoalsOverview(...) called at [call_user_func_array(...) called at /srv/www/htdocs/piwik/core/FrontController.php:136#22 Piwik_FrontController->dispatch(...) called at [/srv/www/htdocs/piwik/index.php:53]

Fatal error: Call to a member function addRowsFromArray() on a non-object in /srv/www/htdocs/piwik/core/Archive/Array/IndexedByDate.php on line 135

[anonymous-matomo-user]

Same here...

[robocoder]

dupe #2578