Server reset?

[NinaOrangina]

Last night I made a Minecraft server at around 8pm and played with different people til about 2am. Today at about 9am someone logged in to the server and there was a whole new seed and empty inventories. It wont let me check logs from before 9am. I had auto-save on. 

[_Tarna_]

Try doing /worlds. You may just be in a different world from your stuff. This can happen if you change the default world of the server to a name of a world that is not on the server. To fix it just change the default world of the server back to the name of the world that has your stuff in it. You won't be able to get your stuff back but you can just give yourself our items back using creative mode or something.