I press the F botton to pick up items at got on the belt and this happened.
The mod Smart Inserters (1.0.9) caused a non-recoverable error.
Please report this error to the mod author.
Error while running event Smart_Inserters::inserter-config-drop-distance-adjust (ID 322)
Smart_Inserters/control.lua:243: attempt to index local 'inserter' (a nil value)
stack traceback:
Smart_Inserters/control.lua:243: in function 'is_slim'
Smart_Inserters/control.lua:1350: in function <Smart_Inserters/control.lua:1347>