If you were using Netbeans or Eclipse, you could go to the line where your error occurs, them it should be real easy for you to find the problem.
I've just had a look at my item.cfg file, most values are the same. The id, name, info and three first integers that follow are different, but all the other ones are the same.
Sorry, but I have no idea how it comes. The only way of knowing what really goes wrong, is by going to the specific line of code where the error occurs. You might also want to add some printlines in your loadItemLost method, so you can see what is being done correctly and what's not.
I can almost only assume that you did use spaces instead of tabs