In-game armor, weapons, stats or whatever are typically ignored for the sake of balance and a bit of realism. As far as I can tell, energy whips aren't apart of tech lore or an approved tech app. You could try to app it or settle for a regular whip. Or ask staff if its okay to use one in the case it doesn't even need an app.
Sorry if this comes off as be yelling at you to fix mistakes or something, just thought I should help you out and stuff. Feel free to ask questions to me or staff.
Have fun dude