Please take a look:
There is an error. Please report the message (Piwik 2.3.0) and full backtrace in the Piwik forums (please do a Search first as it might have been reported already!).
Warning: require_once(): Unable to allocate memory for pool. in /var/www/html/Cobo/piwik/core/Loader.php on line 98
Backtrace -->
#0 Piwik\Error::errorHandler(…) called at [/var/www/html/Cobo/piwik/core/Loader.php:98]
#1 Piwik\Loader::tryToLoadClass(…) called at [/var/www/html/Cobo/piwik/core/Loader.php:98]
#2 Piwik\Loader::tryToLoadClass(…) called at [/var/www/html/Cobo/piwik/core/Loader.php:84]
#3 Piwik\Loader::loadClass(…) called at [/var/www/html/Cobo/piwik/core/Loader.php:114]
#4 Piwik\Loader::autoload(…) called at [:]
#5 spl_autoload_call(…) called at [/var/www/html/Cobo/piwik/core/Singleton.php:37]
#6 Piwik\Singleton::getInstance(…) called at [/var/www/html/Cobo/piwik/plugins/Events/Events.php:40]
#7 Piwik\Plugins\Events\Events->addWidgets(…) called at [:]
#8 call_user_func_array(…) called at [/var/www/html/Cobo/piwik/core/EventDispatcher.php:98]
#9 Piwik\EventDispatcher->postEvent(…) called at [/var/www/html/Cobo/piwik/core/Piwik.php:766]
#10 Piwik\Piwik::postEvent(…) called at [/var/www/html/Cobo/piwik/core/WidgetsList.php:87]
#11 Piwik\WidgetsList::addWidgets(…) called at [/var/www/html/Cobo/piwik/core/WidgetsList.php:54]
#12 Piwik\WidgetsList::get(…) called at [/var/www/html/Cobo/piwik/plugins/Dashboard/Controller.php:41]
#13 Piwik\Plugins\Dashboard\Controller->_getDashboardView(…) called at [/var/www/html/Cobo/piwik/plugins/Dashboard/Controller.php:52]
#14 Piwik\Plugins\Dashboard\Controller->embeddedIndex(…) called at [:]
#15 call_user_func_array(…) called at [/var/www/html/Cobo/piwik/core/FrontController.php:500]
#16 Piwik\FrontController->doDispatch(…) called at [/var/www/html/Cobo/piwik/core/FrontController.php:85]
#17 Piwik\FrontController->dispatch(…) called at [/var/www/html/Cobo/piwik/core/dispatch.php:34]
#18 require_once(…) called at [/var/www/html/Cobo/piwik/index.php:47]
Visits Over Time
There is an error. Please report the message (Piwik 2.3.0) and full backtrace in the Piwik forums (please do a Search first as it might have been reported already!).
Warning: require_once(): Unable to allocate memory for pool. in /var/www/html/Cobo/piwik/core/FrontController.php on line 115
Backtrace -->
#0 Piwik\Error::errorHandler(…) called at [/var/www/html/Cobo/piwik/core/FrontController.php:115]
#1 Piwik\FrontController::makeController(…) called at [/var/www/html/Cobo/piwik/core/FrontController.php:115]
#2 Piwik\FrontController->makeController(…) called at [/var/www/html/Cobo/piwik/core/FrontController.php:485]
#3 Piwik\FrontController->doDispatch(…) called at [/var/www/html/Cobo/piwik/core/FrontController.php:85]
#4 Piwik\FrontController->dispatch(…) called at [/var/www/html/Cobo/piwik/core/dispatch.php:34]
#5 require_once(…) called at [/var/www/html/Cobo/piwik/index.php:47]
There is an error. Please report the message (Piwik 2.3.0) and full backtrace in the Piwik forums (please do a Search first as it might have been reported already!).
Warning: require_once(): Unable to allocate memory for pool. in /var/www/html/Cobo/piwik/core/Loader.php on line 98
Backtrace -->
#0 Piwik\Error::errorHandler(…) called at [/var/www/html/Cobo/piwik/core/Loader.php:98]
#1 Piwik\Loader::tryToLoadClass(…) called at [/var/www/html/Cobo/piwik/core/Loader.php:98]
#2 Piwik\Loader::tryToLoadClass(…) called at [/var/www/html/Cobo/piwik/core/Loader.php:86]
#3 Piwik\Loader::loadClass(…) called at [/var/www/html/Cobo/piwik/core/Loader.php:114]
#4 Piwik\Loader::autoload(…) called at [:]
#5 spl_autoload_call(…) called at [/var/www/html/Cobo/piwik/core/Period.php:91]
#6 Piwik\Period::isMultiplePeriod(…) called at [/var/www/html/Cobo/piwik/plugins/ImageGraph/ImageGraph.php:78]
#7 Piwik\Plugins\ImageGraph\ImageGraph->getReportMetadata(…) called at [:]
#8 call_user_func_array(…) called at [/var/www/html/Cobo/piwik/core/EventDispatcher.php:98]
#9 Piwik\EventDispatcher->postEvent(…) called at [/var/www/html/Cobo/piwik/core/Piwik.php:766]
#10 Piwik\Piwik::postEvent(…) called at [/var/www/html/Cobo/piwik/plugins/API/ProcessedReport.php:238]
#11 Piwik\Plugins\API\ProcessedReport->getReportMetadata(…) called at [/var/www/html/Cobo/piwik/plugins/API/API.php:395]
#12 Piwik\Plugins\API\API->getReportMetadata(…) called at [/var/www/html/Cobo/piwik/core/Plugin/Controller.php:331]
#13 Piwik\Plugin\Controller->getLastUnitGraphAcrossPlugins(…) called at [/var/www/html/Cobo/piwik/plugins/VisitsSummary/Controller.php:94]
#14 Piwik\Plugins\VisitsSummary\Controller->getEvolutionGraph(…) called at [:]
#15 call_user_func_array(…) called at [/var/www/html/Cobo/piwik/core/FrontController.php:500]
#16 Piwik\FrontController->doDispatch(…) called at [/var/www/html/Cobo/piwik/core/FrontController.php:85]
#17 Piwik\FrontController->dispatch(…) called at [/var/www/html/Cobo/piwik/core/dispatch.php:34]
#18 require_once(…) called at [/var/www/html/Cobo/piwik/index.php:47]