The mod FNEI caused a non-recoverable error.

Error while running event FNEI::on_configuration_changed
LuaStyle doesn't contain key want_ellipsis.
stack traceback:
FNEI/scripts/gui.lua:240: in function '?'
FNEI/scripts/gui.lua:166: in function 'add_gui_template'
FNEI/scripts/gui.lua:175: in function 'add_gui_template'
FNEI/scripts/gui.lua:175: in function 'add_gui_template'
FNEI/scripts/hotbar/gui.lua:155: in function 'draw_hotbar_bar_extension'
FNEI/scripts/hotbar/controller.lua:43: in function 'open'
FNEI/scripts/hotbar/controller.lua:72: in function 'on_configuration_change'
FNEI/scripts/events.lua:36: in function <FNEI/scripts/events.lua:29>
stack traceback:
[C]: in function 'newindex'
__FNEI/scripts/gui.lua:240: in function '?'
FNEI/scripts/gui.lua:166: in function 'add_gui_template'
FNEI/scripts/gui.lua:175: in function 'add_gui_template'
FNEI/scripts/gui.lua:175: in function 'add_gui_template'
FNEI/scripts/hotbar/gui.lua:155: in function 'draw_hotbar_bar_extension'
FNEI/scripts/hotbar/controller.lua:43: in function 'open'
FNEI/scripts/hotbar/controller.lua:72: in function 'on_configuration_change'
FNEI/scripts/events.lua:36: in function <FNEI/scripts/events.lua:29>

Yep, me too. Same error.

Open up the FNEI_0.2.5.zip, navigate to scripts/gui.lua and delete line 240. This fixes it until the mod author updates it.

Thank you motolly, it helped.

I had this problem too, is when will the mod author update this mod, because from what I see he doesn't seem very responsive to bug reporting?

Thanks, worked for me as well.
I am playing seablock and can honestly say that it would be extremely difficult without this mod. So to the author, of this and other mods, thanks a million. It makes a great game magnificient.

Agree. The hotfix helped me too.

Same crash. Hotfix seems to work fine, thanks motolly!