Dude, what youre trying to do is attatch a bit of line to the depower line ring, feed it through the bar with a loop at the end of it to attatch your safty leach to right?
Now when you release your chicken loop saftey, that line will be under tention bringing the ring attatchment of the depower line to the bar and get jammed there, leaving power in your kite and you in the sh*t!
Try conecting it to the trim strap below the bar instead!
Failing that, try a new bar with a below the bar safty connection...