Help Help Me With This Error Please!

[Kurkulas]

I have same problem on my server with this error: http://www.maxcheaters.com/topic/189018-critical-error/ - and i don't need even to click on icons it is enough just to point at icon with mouse and i get that error, and it doesn't show the icon of items either, please help if possible?

[Finn]

Check your multisell

[Kurkulas]

Check your multisell

i have been already checking id the id's match everywhere  and all other small things but nothing seems to be wrong with multisell, we thinking if it is to do something with java or either configurations and we still can't figure out what is wrong that we get this error or don't see the items showing icons, some weapons and armors working fine, but some don't and all custom items are working fine when you spawn them in your inventory.

Edited February 25, 2017 by Kurkulas