Weird Plugin Issue

Hey ampayne2!
Since the 1.7.9 update for DropParty, after creating 3 drop parties in my server, and restarting, the plugin stops working. I have to delete the parties.yml file in order to fix it. When it stops working, the /dp command won't return something, not even the "unknown command" text. I am pretty sure that I saw something in the start up log before it first stopped working, and it said something about "chest refreshing". Is there something I could have done wrong while making the drop parties? Do you need my config.yml file?

[VerserVarlin]

same here

running #1627 spigot and #33 drop party