What steps will reproduce the problem?
1. click too expensive in AS
2. get error:
Message: ..\AddOns\Auctionsnatch\auctionsnatch.lua line 1080:
   bad argument #1 to 'max' (number expected, got nil)
3. AS is unrepsonsive after this

What is the expected output? What do you see instead?
No error

What version of the product are you using?
3.1

Do you have an error log of what happened?
Date: 2009-06-16 19:32:09
ID: 1
Error occured in: Global
Count: 1
Message: ..\AddOns\Auctionsnatch\auctionsnatch.lua line 1080:
   bad argument #1 to 'max' (number expected, got nil)
Debug:
   (tail call): ?
   [C]: ?
   [C]: max()
   Auctionsnatch\auctionsnatch.lua:1080 ASgetcost()
   Auctionsnatch\auctionsnatch.lua:1116 ?()
   ...face\AddOns\Auctionsnatch\auctionsnatchinterface.lua:647
      ...face\AddOns\Auctionsnatch\auctionsnatchinterface.lua:646
AddOns:
  Swatter, v5.5.4293 (WombatII)
  Auctionsnatch, v
  (ck=c0c)

Please provide any additional information below.