Uncaught TypeError: Cannot read property 'show' of null

[Daltonsoft]

Hello Guys,
I Get the error below in when using api.destroy(true) in the hide event.

Chrome Console Error:
Uncaught TypeError: Cannot read property 'show' of null - jquery.qtip.js:1021
PROTOTYPE.toggle jquery.qtip.js:1021
PROTOTYPE.hide jquery.qtip.js:1094
(anonymous function) jquery.qtip.js:1194
jQuery.event.dispatch jquery-1.9.1.js:3074
elemData.handle jquery-1.9.1.js:2750

Code: http://jsfiddle.net/yf6gQ/