Players lose their items when join?

Discussion in 'Spigot Plugin Help' started by Timotej4487, Jun 30, 2016.

  1. Players just lose their items and spawn in spawn like they were dead. When they log out and in.

    Also for staffs. Fx if I am in creative mode and I got some blocks on me and I relog, I lose my items spawn in spawn and then Im in survival mode.

    I have no idea what the problem is. Please help me.
  2. Code (Text):

    [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
    net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.