castanets

So I was having issues where players in my world spawned somewhere else. I downloaded a plugin to fix it and restarted my server, but as soon as I logged on all the items in my enderchest were missing, and my inventory items got rollbacked to around 4 days ago. I tried the inventory rollback plugin, but it doesn't seem to work. any ideas on how I can fix this?

I had an issue similar to others where when I logged in to my smp, I spawned in a new world. I followed some commands and got the world back, but my inventory was wiped. Any ideas how to fix this? Thanks