... lucky its an Evo so it can fly no worries on 4 line bar but I have a short term solution ie you broke it during a session and you don't want to go home. The suggested mod is not workable on Rebels by the way.
Since all 3 front lines are same length, you can attach your blue line to one side and the other black and red togeather on the other front attachment. If you have to punch out, you still have some form of safety ie flag out, but it will be difficult to recover.
Not sure if the Y point height is the same on the 4 line bar to the 5 line bar but at a pinch, you'll get out. The only thing I don't know is how long you can run your bar this way, but I have seen kites fly for whole sessions this way with no worries. We had a guy here on a Rebel who would mix up the line attachments and accidently attach the safety to one side and what would be normally the front line to the 5th line on the kite. They would only find out the mistake when it came time to do the 5th line self landing, as in, pull the 5th to tip the kite forward to land and it aint going as normal.
Good luck, cheers for now,
Robbie