A new version has been released for DropParty, it is available for download here.
Fixed the server killing aspect of the plugin. Did a full re-write of the logic, removed the tier system for now, planning on adding it back in at a later date.
The new version that I intened to upload, at some point, was replaced with the changes that I started making after making the fix, the most recent upload has code that was untested, and unintended to be uploaded, I am working on a fix to get a working version uploaded shortly.