The mod Factory Search (1.12.3) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event FactorySearch::search-factory (ID 507)
The mod GUI Unifyer: Unified (2.1.0) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event GUI_Unifyer_Unified::on_gui_opened (ID 96)
GUI_Unifyer_Unified/control.lua:1084: attempt to index global 'global' (a nil value)
stack traceback:
GUI_Unifyer_Unified/control.lua:1084: in function <GUI_Unifyer_Unified/control.lua:1079>
stack traceback:
[C]: in function 'newindex'
__FactorySearch/scripts/gui.lua:623: in function 'open'
FactorySearch/scripts/gui.lua:665: in function 'toggle'
FactorySearch/scripts/custom-input.lua:7: in function <FactorySearch/scripts/custom-input.lua:2>

Just after last release....

I've implemented a hotfix as version 2.1.1, I'm sorry for the crashes!

Thank You!!!

The mod is now located on the original page at https://mods.factorio.com/mod/GUI_Unifyer again, you can safely move over from the Unified fork. I will keep it up to date there!