Hi, everytime economics will Saving balances for players I will get this warning:

Entity is NULL but is still in saveList - not destroyed properly? bolt_rifle.entity
Entity is NULL but is still in saveList - not destroyed properly? bolt_rifle.entity
Entity is NULL but is still in saveList - not destroyed properly? bolt_rifle.entity
Entity is NULL but is still in saveList - not destroyed properly? bolt_rifle.entity
Entity is NULL but is still in saveList - not destroyed properly? bolt_rifle.entity
Entity is NULL but is still in saveList - not destroyed properly? bolt_rifle.entity
Entity is NULL but is still in saveList - not destroyed properly? bolt_rifle.entity
Entity is NULL but is still in saveList - not destroyed properly? bolt_rifle.entity
Entity is NULL but is still in saveList - not destroyed properly? bolt_rifle.entity
Entity is NULL but is still in saveList - not destroyed properly? weaponracklight
Entity is NULL but is still in saveList - not destroyed properly? electricfurnace.io
Entity is NULL but is still in saveList - not destroyed properly? electricfurnace.io
Entity is NULL but is still in saveList - not destroyed properly? electricfurnace.io
Entity is NULL but is still in saveList - not destroyed properly? electricfurnace.io
Entity is NULL but is still in saveList - not destroyed properly? electricfurnace.io
Entity is NULL but is still in saveList - not destroyed properly? electricfurnace.io
Entity is NULL but is still in saveList - not destroyed properly? electricfurnace.io
Entity is NULL but is still in saveList - not destroyed properly? electricfurnace.io
Entity is NULL but is still in saveList - not destroyed properly? electricfurnace.io
Entity is NULL but is still in saveList - not destroyed properly? electricfurnace.io
Entity is NULL but is still in saveList - not destroyed properly? electricfurnace.io
Entity is NULL but is still in saveList - not destroyed properly? electricfurnace.io​

I found the entries in economics.json, stopped the plugin, removed them but after a while they come back.

What can I do to prevent this for future?

Cheers
MadDom