I installed: 

CjLib API 2.2.1

Community Polls Package 4.2.0

This is installed on a joomla 3.3.6 install

PHP: 5.5.9-1ubuntu4.5

When i tried to create a menu item to a poll I got this the white screen and an error in the log of: 

error reading data from FastCGI server

End of script output before headers: index.php

This also happened when I tried to include a module with a random poll in a sidebar.

A little code digging I found that the Module was erroring on this line (line 400, file: mod_randompoll/tmpl/default.php):

<?php echo JText::sprintf('TXT_CATEGORY', JHtml::link(

JRoute::_(CommunityPollsHelperRoute::getCategoryRoute($poll->catslug)), 

CJFunctions::escape($poll->category_title)));?>

I am assuming that this same call is what is breaking the menu item as well as they would both deal with trying to create a route.