editing the error function

--This is BlueSky function library and event manager.
--Thank you for downloading this program
--Please give credit to awsumben13 if you use or distribute this program
--Help is at the bottom
local args = {...}
sky = {}
sky.clockload = nil
sky.graphicsload = nil
sky.fileload = nil
sky.exitx = 1
sky.exity = 1
function sky.update() end
function sky.input() end
function sky.draw() end
function sky.load() end
function sky.loadapibank() end
function sky.acquire(filename)
if filename and fs.exists(filename) then
  shell.run(filename,"LoadApiBank")
  return true
end
return false
end
function try(name,...)
ok, err = pcall(name,...)
if not ok then
  error(err)
end
end
--finish this!
function sky.error(input)
error(input)
end
function sky.inputter()
event,p1,p2,p3,p4,p5 = os.pullEvent()
if event ~= "timer" then
  sleep((1/sky.clock.fps)-timedif)
  sky.input(event,p1,p2,p3,p4,p5)
end
end
function sky.drawer()
sky.draw()
if sky.gameload then
  sky.game.draw()
end
end
function sky.updater()
time = os.clock()
try(sky.clock.updateTimers)
try(sky.clock.checkTimerOutput)
timedif = os.clock()-time
os.startTimer(1/sky.clock.fps-timedif)
try(sky.inputter)
try(sky.update,sky.clock.fps,)
try(sky.drawer)
term.setCursorPos(sky.exitx,sky.exity)
term.setBackgroundColour(colours.black)
term.setTextColour(colours.white)
end
opentype = args[1]
file = args[2]
if not file or file == "" or file == nil or #args < 1 then
k = sky.acquire "BlueSky/program.lua"
elseif not fs.exists(file) then
sky.error("file not found")
elseif fs.exists(file) then
k = sky.acquire(file)
end
if k and opentype == "run" then
table.remove(args,1)
table.remove(args,2)
sky.loadapibank()
if sky.clockload then
  sky.acquire "BlueSky/clock.lua"
end
if sky.graphicsload or sky.gameload then
  sky.acquire "BlueSky/graphics.lua"
end
if sky.fileload then
  sky.acquire "BlueSky/file.lua"
end
if sky.gameload then
  sky.acquire "BlueSky/game.lua"
end
if not sky.clockload then
  sky.clock = {}
  sky.clock.fps = 20
end
sky.acquire "BlueSky/event.lua"
sky.acquire "BlueSky/utils.lua"
sky.running = true
sky.load()
while sky.running == true do
  try(sky.updater)
end
end