Getting error on piwik dashboard

I’m getting this strange message on the piwik dashboard in every tab/subtab of it:

ERROR: Failed to get data from API: Unsupported pivot: the subtable dimension for ‘Events.Event Categories’ does not match the requested pivotBy dimension. [subtable dimension = Events.EventAction, pivot by dimension = Events.EventName] #0 /usr/share/nginx/html/core/DataTable/Filter/PivotByDimension.php(170): Piwik\DataTable\Filter\PivotByDimension->checkSupportedPivot() #1 [internal function]: Piwik\DataTable\Filter\PivotByDimension->__construct(Object(Piwik\DataTable), ‘Events.getCateg…’, ‘Events.EventNam…’, ‘’, 0, 0) #2 /usr/share/nginx/html/core/DataTable.php(494): ReflectionClass->newInstanceArgs(Array) #3 /usr/share/nginx/html/core/API/DataTablePostProcessor.php(160): Piwik\DataTable->filter(‘PivotByDimensio…’, Array) #4 /usr/share/nginx/html/core/API/DataTablePostProcessor.php(110): Piwik\API\DataTablePostProcessor->applyPivotByFilter(Object(Piwik\DataTable)) #5 /usr/share/nginx/html/core/Plugin/Visualization.php(433): Piwik\API\DataTablePostProcessor->process(Object(Piwik\DataTable)) #6 /usr/share/nginx/html/core/Plugin/Visualization.php(185): Piwik\Plugin\Visualization->applyFilters() #7 /usr/share/nginx/html/core/Plugin/ViewDataTable.php(414): Piwik\Plugin\Visualization->buildView() #8 /usr/share/nginx/html/core/Plugin/Report.php(339): Piwik\Plugin\ViewDataTable->render() #9 /usr/share/nginx/html/core/Plugin/Controller.php(327): Piwik\Plugin\Report->render() #10 /usr/share/nginx/html/plugins/Events/Controller.php(96): Piwik\Plugin\Controller->renderReport(‘getCategory’) #11 /usr/share/nginx/html/plugins/Events/Controller.php(43): Piwik\Plugins\Events\Controller->indexEvent(‘indexCategory’) #12 [internal function]: Piwik\Plugins\Events\Controller->indexCategory() #13 /usr/share/nginx/html/core/FrontController.php(531): call_user_func_array(Array, Array) #14 /usr/share/nginx/html/core/FrontController.php(97): Piwik\FrontController->doDispatch(‘Events’, ‘indexCategory’, NULL) #15 /usr/share/nginx/html/core/FrontController.php(130): Piwik\FrontController->dispatch(‘Events’, ‘indexCategory’, NULL) #16 /usr/share/nginx/html/core/View/ReportsByDimension.php(121): Piwik\FrontController->fetchDispatch(‘Events’, ‘indexCategory’) #17 /usr/share/nginx/html/plugins/Events/Controller.php(38): Piwik\View\ReportsByDimension->render() #18 /usr/share/nginx/html/plugins/Events/Controller.php(22): Piwik\Plugins\Events\Controller->getLeftMenuReports() #19 [internal function]: Piwik\Plugins\Events\Controller->index() #20 /usr/share/nginx/html/core/FrontController.php(531): call_user_func_array(Array, Array) #21 /usr/share/nginx/html/core/FrontController.php(97): Piwik\FrontController->doDispatch(NULL, NULL, NULL) #22 /usr/share/nginx/html/core/dispatch.php(31): Piwik\FrontController->dispatch() #23 /usr/share/nginx/html/index.php(27): require_once(’/usr/share/ngin…’) #24 {main}

I think this is the important part:
ERROR: Failed to get data from API: Unsupported pivot: the subtable dimension for ‘Events.Event Categories’ does not match the requested pivotBy dimension.

I’m not sure if this affects any of the results shown below this message.
I would appreciate any sort of advice in this matter.
Cheers,
Diego.

Hi Diego,

Could you try upgrade to 2.14.0 and if you still have the issue, please create a bug report at: Issues · matomo-org/piwik · GitHub