Bukkit

What steps will reproduce the problem?
1. Make a shop
2. Restart the server
3.

What is the expected output? What do you see instead?
expect shops to stay the same. Item on chest can be picked up, and and is called displayitem xx. Chest then has no display item and does not function

What version of the product are you using?
The most recent

Do you have an error log of what happened?
No

Please provide any additional information below.
I am also running Secure Chests, CoreProtect and Absolutewelcome.
There is also a problem with an intermittent error I don't know how to recreate where people can open others' chests and take items. Otherwise this is a great plugin! Thanks a lot for all your work.

I have just been looking at my files and see that shop.yml only has a record of 10 shops - 7 belonging to 1 player and 3 to another, and these are the only shops that don't have problems. There are many other shops belonging to other players, but no record of them in either shops.yml or shopsbackup.yml, which only has 9 chests in.