The mod Smart Inserters (1.2.0) caused a non-recoverable error.
Please report this error to the mod author.
Error while running event Smart_Inserters::on_pre_entity_settings_pasted (ID 32)
core/lualib/math2d.lua:10: attempt to index local 'pos' (a nil value)
stack traceback:
core/lualib/math2d.lua:10: in function 'ensure_xy'
Smart_Inserters/control.lua:66: in function 'split'
Smart_Inserters/control.lua:314: in function 'get_arm_positions'
Smart_Inserters/control.lua:2054: in function <Smart_Inserters/control.lua:2052>
@nightshroud2020 you can select and copy the text, without screenshot ;-)