[15:35:49] [Server thread/WARN]: Failed to handle packet for /10.0.0.44:50395
f: Ticking player
        at rp.i(SourceFile:423) ~[minecraft_server.18w01a.jar:?]
        at rz.Q_(SourceFile:190) ~[minecraft_server.18w01a.jar:?]
        at hc.a(SourceFile:234) ~[minecraft_server.18w01a.jar:?]
        at ry.c(SourceFile:188) [minecraft_server.18w01a.jar:?]
        at net.minecraft.server.MinecraftServer.w(SourceFile:697) [minecraft_server.18w01a.jar:?]
        at qy.w(SourceFile:352) [minecraft_server.18w01a.jar:?]
        at net.minecraft.server.MinecraftServer.v(SourceFile:604) [minecraft_server.18w01a.jar:?]
        at net.minecraft.server.MinecraftServer.run(SourceFile:509) [minecraft_server.18w01a.jar:?]
        at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
Caused by: java.lang.NullPointerException
        at um.a(SourceFile:28) ~[minecraft_server.18w01a.jar:?]
        at um.a(SourceFile:22) ~[minecraft_server.18w01a.jar:?]
        at um.<init>(SourceFile:15) ~[minecraft_server.18w01a.jar:?]
        at uo.a(SourceFile:24) ~[minecraft_server.18w01a.jar:?]
        at java.util.Map.computeIfAbsent(Map.java:957) ~[?:1.8.0_91]
        at uo.a(SourceFile:24) ~[minecraft_server.18w01a.jar:?]
        at uo.b(SourceFile:41) ~[minecraft_server.18w01a.jar:?]
        at rp.a(SourceFile:456) ~[minecraft_server.18w01a.jar:?]
        at aam.a(SourceFile:849) ~[minecraft_server.18w01a.jar:?]
        at aiz.a(SourceFile:883) ~[minecraft_server.18w01a.jar:?]
        at rp.a(SourceFile:526) ~[minecraft_server.18w01a.jar:?]
        at aad.h(SourceFile:980) ~[minecraft_server.18w01a.jar:?]
        at aad.a(SourceFile:843) ~[minecraft_server.18w01a.jar:?]
        at aam.a(SourceFile:1624) ~[minecraft_server.18w01a.jar:?]
        at aiz.a(SourceFile:1550) ~[minecraft_server.18w01a.jar:?]
        at aam.l(SourceFile:1919) ~[minecraft_server.18w01a.jar:?]
        at aiz.l(SourceFile:509) ~[minecraft_server.18w01a.jar:?]
        at aam.H_(SourceFile:1745) ~[minecraft_server.18w01a.jar:?]
        at aiz.H_(SourceFile:268) ~[minecraft_server.18w01a.jar:?]
        at rp.i(SourceFile:360) ~[minecraft_server.18w01a.jar:?]
        ... 8 more
[15:35:49] [Server thread/INFO]: TextCompone