[21:35:01 WARN]: [SwampBasketball] Task #105 for SwampBasketball v1.0 generated an exception
java.lang.IllegalArgumentException: location
        at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[spigot-1.12.2.jar:git-Spigot-dcd1643-e60fc34]
        at org.bukkit.craftbukkit.v1_12_R1.entity.CraftPlayer.teleport(CraftPlayer.java:490) ~[spigot-1.12.2.jar:git-Spigot-dcd1643-e60fc34]
        at org.bukkit.craftbukkit.v1_12_R1.entity.CraftEntity.teleport(CraftEntity.java:271) ~[spigot-1.12.2.jar:git-Spigot-dcd1643-e60fc34]
        at com.swampmc.basketball.Basketball.teleportPlayers(Basketball.java:156) ~[?:?]
        at com.swampmc.basketball.Basketball.start(Basketball.java:124) ~[?:?]
        at com.swampmc.basketball.Basketball$1.run(Basketball.java:88) ~[?:?]
        at org.bukkit.craftbukkit.v1_12_R1.scheduler.CraftTask.run(CraftTask.java:76) ~[spigot-1.12.2.jar:git-Spigot-dcd1643-e60fc34]
        at org.bukkit.craftbukkit.v1_12_R1.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:361) [spigot-1.12.2.jar:git-Spigot-dcd1643-e60fc34]
        at net.minecraft.server.v1_12_R1.MinecraftServer.D(MinecraftServer.java:739) [spigot-1.12.2.jar:git-Spigot-dcd1643-e60fc34]
        at net.minecraft.server.v1_12_R1.DedicatedServer.D(DedicatedServer.java:406) [spigot-1.12.2.jar:git-Spigot-dcd1643-e60fc34]
        at net.minecraft.server.v1_12_R1.MinecraftServer.C(MinecraftServer.java:679) [spigot-1.12.2.jar:git-Spigot-dcd1643-e60fc34]
        at net.minecraft.server.v1_12_R1.MinecraftServer.run(MinecraftServer.java:577) [spigot-1.12.2.jar:git-Spigot-dcd1643-e60fc34]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_191]