They probably can't do anything about it. It'll be the same old excuse they use for everything: 'Oh, we didn't even make the plugin so we can't do anything. Lets just leave it broken.'
I may be completely wrong; but I believe the reason it's broken is because of no fall damage. Every time you fall, the plugin registers that you lost health, so it goes down. If it's possible to fix, support!
I guess they could add feather falling 69 on all the boots in all the kits and add fall damage back, or find a different plugin. As long as health is properly displayed. Thanks for the support.