Getting some odd errors

So basically this is my menu API

local function center(str, width)
local blank = string.rep(' ',math.floor((width-#str)/2))
return blank .. str
end
local function printc(stri,coordx,coordy)
term.setCursorPos(coordx,coordy)
write(stri)
end
local function split(str, pat)
  local t = { }
  local fpat = "(.-)"..pat
  local last_end = 1
  local s, e, cap = str:find(fpat, 1)
  while s do
    if s ~= 1 or cap ~= "" then
	  table.insert(t,cap)
    end
    last_end = e+1
    s, e, cap = str:find(fpat, last_end)
  end
  if last_end <= #str then
    cap = str:sub(last_end)
    table.insert(t, cap)
  end
  return t
end
selected = 1
function create(title,items,blurb,func)
if selected == nil then selected = 1 end
term.clear()
term.setCursorPos(1,1)
printc("+----------------------------+",11,1)
printc("|"..center(title,28),11,2)
printc("|",40,2)
printc("+----------------------------+",11,3)
printc("|						    |",11,4)
printc("|						    |",11,5)
printc("|						    |",11,6)
printc("|						    |",11,7)
printc("|						    |",11,8)
printc("|						    |",11,9)
printc("|						    |",11,10)
printc("|						    |",11,11)
printc("|						    |",11,12)
printc("|						    |",11,13)
printc("|						    |",11,14) 
printc("+----------------------------+",11,15)
printc("|						    |",11,16)
printc("|						    |",11,17)
printc("+----------------------------+",11,18)
for linen, item in ipairs(items) do
  if linen <= 10 then
  term.setCursorPos(14,3 + linen)
   print(item)
  end
end
term.setCursorPos(13,3 + selected)
print("["..items[selected].."]")
blurbword = split(blurb[selected]," ")
local l1 = ""
local l2 = ""
for i,w in ipairs(blurbword) do
  if string.len(l1..w) <= 25 then
   if i == 1 then
    l1 = w
   else
    l1 = l1.." "..w
   end
  elseif string.len(l1..w) > 25 then
   if string.len(l2..w) <= 25 then
    if string.len(l2) == 0 then
	 l2 = w
    else
	 l2 = l2.." "..w
    end
   end
  end
end
printc(l1,13,16)
printc(l2,13,17)
end
--selected = 1
--create()
--term.setCursorBlink(false)
while true do
local sEvent, param = os.pullEvent()
if sEvent == "key" then
  if param == 28 then
   func[selected]()
  elseif param == 208 then
   if selected < #items then selected = selected + 1 end
   create()
  elseif param == 200 then
   if selected > 1 then selected = selected - 1 end
   create()
  end
elseif sEvent == "terminate" then
  break
end
end

and this is the code im using to run it

os.loadAPI("menu")
func = {function() print("hello");print("bob") end}
title = "Programs"
items = {
"Set Lobby Sign", --Menu item One
"Open End Door",  --Menu item two
"*Blank*", --Menu item three
"*Blank*", --Menu item four
"*Blank*", --Menu item five
"*Blank*", --Menu item six
"*Blank*", --Menu item seven
"*Blank*", --Menu item eight
"Debug", --Menu item nine
"Exit" --Menu item ten
}
blurb = {
"Sets The Lobby's Monitors Text", --Menu item 1 blurb
"Opens the Secret Door In Lobby to End Portal", --Menu item 2 blurb
"*Blank*",--Menu item 3 blurb
"*Blank*",--Menu item 4 blurb
"*Blank*",--Menu item 5 blurb
"*Blank*",--Menu item 6 blurb
"*Blank*",--Menu item 7 blurb
"*Blank*",--Menu item 8 blurb
"Allows User To Edit Codes",--Menu item 9 blurb
"Logs Off The Computer"--Menu item 10 blurb
}
menu.create(title,items,blurb,func)

anyway im getting some wierd errors like the args dont seem to be coming across can anyone debug it for me?

Whats that menu API? Cause my menus have very messy code and take forever to write.

Can you describe the weird errors?