Error while running event SmartDisplayRedux::on_tick (ID 0)
LuaEquipmentGrid doesn't contain key name.
stack traceback:
SmartDisplayRedux/control.lua:597: in function <SmartDisplayRedux/control.lua:573>

Same here...
https://imgur.com/Oy2KkuJ

if is needed anything, just ask!

I've sent a pull request to get it fixed, but for now you can change line 587 in control.lua:
if player.connected

to:

if player.connected and (player.opened_gui_type == defines.gui_type.none or player.opened_gui_type == defines.gui_type.entity) then

and it fixes it.

Worked for me. Great thanks for the fix - didn´t expect to find one :)