Blank Widgets and Error within Visitor Log

Hi guys,

We just completed installing Piwik in our server a couple of days back. The statistics part seems to be really slow. Its a wordpress site which happened to have around 6000 visitors yesterday. We wanted to check out how Piwik fared. But when we loaded, the widgets never showed any data. [We had kept the dashboard open for a really long time…in fact around 2 hours to be more precise]
The only data we did get was at Visitors -> visitor log. But again, there was this following error tagged along with every entry:

Warning: htmlspecialchars() [<a href='function.htmlspecialchars'>function.htmlspecialchars</a>]: Invalid multibyte sequence in argument in C:\wamp\www\thoolika\piwik\core\SmartyPlugins\modifier.escape.php on line 31 

Backtrace -->
#0 Piwik_ErrorHandler(...) called at [:]#1 htmlspecialchars(...) called at [C:\wamp\www\thoolika\piwik\core\SmartyPlugins\modifier.escape.php:31]#2 smarty_modifier_escape(...) called at [C:\wamp\www\thoolika\piwik\tmp\templates_c\%%46^462^46227F0A%%visitorLog.tpl.php:337]#3 include(...) called at [C:\wamp\www\thoolika\piwik\libs\Smarty\Smarty.class.php:1263]#4 Smarty->fetch(...) called at [C:\wamp\www\thoolika\piwik\core\View.php:133]#5 Piwik_View->render(...) called at [C:\wamp\www\thoolika\piwik\core\Controller.php:153]#6 Piwik_Controller->renderView(...) called at [C:\wamp\www\thoolika\piwik\plugins\Live\Controller.php:84]#7 Piwik_Live_Controller->getVisitorLog(...) called at [:]#8 call_user_func_array(...) called at [C:\wamp\www\thoolika\piwik\core\FrontController.php:138]#9 Piwik_FrontController->dispatch(...) called at [C:\wamp\www\thoolika\piwik\index.php:53]

Could you please help us out here?


Can you please do as explained in: How to Set up Auto-Archiving of Your Reports - Analytics Platform - Matomo

for 6000 visitors, as this is medium-big site, piwik works better with a cron which pre-process data every hour or every day.

As for the bug it will be fixed in a few weeks, is discussed in: Warning: htmlspecialchars() Invalid multibyte sequence in argument in core/DataTable/Renderer.php on line 223 · Issue #3259 · matomo-org/matomo · GitHub

Thank you Matt.
Will put up a Cron as you suggested and let you know in case we face any further issues.