After trying to update the 'Who's Online' block I get the following error...

Warning: require_once(/home/diet2n5/public_html/101Businessinsights.com/packages/block_whosonline/blocks/theoryblister_whos_online/controller.php) [function.require-once]: failed to open stream: No such file or directory in /home/diet2n5/public_html/101Businessinsights.com/concrete/core/libraries/loader.php on line 214

Fatal error: require_once() [function.require]: Failed opening required '/home/diet2n5/public_html/101Businessinsights.com/packages/block_whosonline/blocks/theoryblister_whos_online/controller.php' (include_path='/home/diet2n5/public_html/101Businessinsights.com/libraries/3rdparty:/home/diet2n5/public_html/101Businessinsights.com/concrete/libraries/3rdparty:.:/usr/lib/php:/usr/local/lib/php') in /home/diet2n5/public_html/101Businessinsights.com/concrete/core/libraries/loader.php on line 214

Any suggestions?

Andre