ASK was first released tested only with Joomla! 3.2 (Version 3-1 - 2013-12-16 - see changelog). The plugin will only work with higher versions, in general I only support the latests releases within the major version (now: 3.4.6).
You should update your Joomla! version if you want to use this plugin. By the way, you Joomla! version has several security flaws and you should update asap to the latest release! Don't forget to create a backup first and never update your production website directly.