Bukkit

[What steps will reproduce the problem?]
1.Place a chest from IronChest mod (Forge)
2.Place sign on chest and fill out
3.Sign pops off and says No Chest Found

[What is the expected output? What do you see instead?]
...Shop to be created on chest.   Pops off and says No Chest Found

[What version of the plugin are you using? (/csversion), "latest" is not an answer]
...3.8.0 for minecraft 1.8.1 BUT using 1.7.10 Minecraft

[What version of the CraftBukkit are you using? (/version)]
...
Cauldron .4881 version

[What economy plugin are you using? (iConomy, BOSEconomy, etc? - include version as well)]
... version ...
Vault. 1.5.6

[If the defect involves other plugins, please include their names and versions below]
...Iron Chest Forge Mod

[Do you have an error log of what happened? Check your console, server.log and messages you got through chat]
...

[Please provide any additional information below.]