Client crash: a gem on a belt

[not_a_cat]

Default client crash message:
java.lang.NullPointerException: No image in gfx/invobjs/gems/gemstone
at haven.GameUI$NKeyBelt.draw(GameUI.java:1245)
at haven.Widget.draw(Widget.java:699)
at haven.Widget.draw(Widget.java:704)
at haven.GameUI.draw(GameUI.java:765)
at haven.Widget.draw(Widget.java:699)
at haven.Widget.draw(Widget.java:704)
at haven.RootWidget.draw(RootWidget.java:66)
at haven.UI.draw(UI.java:141)
at haven.HavenPanel.rootdraw(HavenPanel.java:303)
at haven.HavenPanel.run(HavenPanel.java:557)
at java.lang.Thread.run(Unknown Source)

Caused by: an attempt to put a gemstone on the hotkey bar

[Enjoyment_2]

+1, easy to reproduce and works perfectly. can't reach my char anymore.
also, the data for assigned hotbar keys is stored on server-side, so it could be fun.
Gladly I used a fresh alt for this

[Zlyuka2]

Default client crash message:
java.lang.NullPointerException: No image in gfx/invobjs/gems/gemstone
at haven.GameUI$NKeyBelt.draw(GameUI.java:1245)
at haven.Widget.draw(Widget.java:699)
at haven.Widget.draw(Widget.java:704)
at haven.GameUI.draw(GameUI.java:765)
at haven.Widget.draw(Widget.java:699)
at haven.Widget.draw(Widget.java:704)
at haven.RootWidget.draw(RootWidget.java:66)
at haven.UI.draw(UI.java:141)
at haven.HavenPanel.rootdraw(HavenPanel.java:303)
at haven.HavenPanel.run(HavenPanel.java:557)
at java.lang.Thread.run(Unknown Source)

Caused by:
accidentally clicked with a gemstone on the slot of the right hand in which there was a bag