bad argument #1 (number expected, got nil)
stack traceback:
	[C]: in function 'error'
	machine:971: in function <machine:968>
	(...tail calls...).2509765625
	/reactor_control.lua:110: in function 'progressBar'
	/reactor_control.lua:119: in function 'makegraph'
	/reactor_control.lua:257: in function 'activeloop'
	/reactor_control.lua:269: in main chunk
	(...tail calls...)


Line 110: gpu.setForeground(fg)