LG G2 Root Access Error using TheCubed's IORoot topic

TheCubed LG G2 Root Thread: http://forum.xda-developers.com/show....php?t=2448887

In the CMD I get an error while rooting my LG G2 (AT&T).
~See Attatchment for CMD error screenshot~

Can anyone help me fix/troubleshoot this error?

Attached Thumbnails