Sorry for the trouble! I forgot to remove the AngelChestTest-world, which I used to debug. If you used version 1.3.0, there is an AngelChestTest-folder in your server's directory. Shutdown your server, update AngelChest to 1.3.1 and delete the folder.

Also added a better mechanism to spawn chests when you died in the void. Players dying below Y = 1 are now treated as if they died at Y = 1.