Well, I've managed to get here.
The mod Helper for mods that create new characters (2.0.0) caused a non-recoverable error.
Please report this error to the mod author.
Error while running event CharacterModHelper::on_init()
CharacterModHelper/control.lua:939:
[ER Global Lock] Forbidden global read:
{key = "global"}
stack traceback:
[C]: in function 'error'
CharacterModHelper/control.lua:939: in function 'index'
__CharacterModHelper/control.lua:624: in function 'init'
CharacterModHelper/control.lua:723: in function <CharacterModHelper/control.lua:715>
This error is caused by attempting to read "global", but there is no "global" anymore - it is now called "storage". You can avoid by do doing the step 5 in my first comment on this thread:
CharacterModHelper_1.1.6\control.lua
change all instances of "flying-text" to "highlight-box"
change all instances of "global" to "storage"
change "game.get_filtered_entity_prototypes" to "prototypes.get_entity_filtered"
There are about 100 mentions of "global" in the control.lua and you have to replace them all. In Notepad++ it's Ctrl+F -> Replace -> Replace All.
Are you still seeing the previous error? It can be avoided by commenting or removing lines 806 to 810 in control.lua, this solution worked for ultrablue988.