Hello.
When i withdraw one hart and it gets intomy inventory, if i really quickly dubble right click it, it gives me 2 harts instead of one.
In console it says "[18:16:46 ERROR]: Could not pass event PlayerInteractEvent to LifeSteal-Smp-Plugin v1.0"
It's a lot longer error. if u want i can post it.

Please post it to Pastebin and send the link here

i typed /lswithdraw then dubble clicked gart and it gave me 2 harts.
here is error https://pastebin.com/tJaW498M

Version 2.3.18 has this issue fixed, thank you for reporting.