cannot fishing in the world.

[12:09:21 FATAL]: Error executing task on Server

[12:09:21 FATAL]: Error executing task on Serverjava.lang.NullPointerException: null

at be.b(SourceFile:183) ~[server.jar:?] at bi.a(SourceFile:32) ~[server.jar:?]

at bdo.b(SourceFile:478) ~[server.jar:?] at biv.a(SourceFile:23) ~[server.jar:?]

at bjh.a(SourceFile:212) ~[server.jar:?] at yv.a(SourceFile:273) ~[server.jar:?]

at zl.a(SourceFile:1000) ~[server.jar:?] at sp.a(SourceFile:31) ~[server.jar:?]

at sp.a(SourceFile:9) ~[server.jar:?] at nh.a(SourceFile:21) ~[server.jar:?]

at uo.run(SourceFile:18) ~[server.jar:?] at alu.c(SourceFile:144) [server.jar:?]

at aly.c(SourceFile:23) [server.jar:?] at net.minecraft.server.MinecraftServer.b(SourceFile:789) [server.jar:?]

at net.minecraft.server.MinecraftServer.c(SourceFile:159) [server.jar:?]

at alu.w(SourceFile:118) [server.jar:?] at net.minecraft.server.MinecraftServer.bc(SourceFile:771) [server.jar:?]

at net.minecraft.server.MinecraftServer.w(SourceFile:765) [server.jar:?] at alu.bl(SourceFile:103) [server.jar:?]

at net.minecraft.server.MinecraftServer.v(SourceFile:749) [server.jar:?]

at net.minecraft.server.MinecraftServer.run(SourceFile:702) [server.jar:?]

at java.lang.Thread.run(Unknown Source) [?:1.8.0_202]