Apply potion effect after respawn

Hello. I want to apply a potion effect after respawn. My code does work in 1.13.2 but not in 1.14. I don't know why.
The code that I got:

Code:

    @EventHandler
    public void onPlayerRespawn(PlayerRespawnEvent event) {
        Player p = event.getPlayer();
       
        String worldname = p.getWorld().getName();
       
        int checkWorld = getConfig().getInt("World."+worldname);
        if(checkWorld == 1) {
            p.getInventory().addItem(new ItemStack(Material.DIAMOND_SWORD, 1));
            p.getInventory().addItem(new ItemStack(Material.BOW, 1));
            p.getInventory().addItem(new ItemStack(Material.GOLDEN_APPLE, 5));
            p.getInventory().addItem(new ItemStack(Material.COOKED_BEEF, 16));
            p.getInventory().addItem(new ItemStack(Material.EXPERIENCE_BOTTLE, 16));
            p.getInventory().addItem(new ItemStack(Material.ARROW, 64));

            p.getInventory().setHelmet(new ItemStack(Material.IRON_HELMET));
            p.getInventory().setChestplate(new ItemStack(Material.IRON_CHESTPLATE));
            p.getInventory().setLeggings(new ItemStack(Material.IRON_LEGGINGS));
            p.getInventory().setBoots(new ItemStack(Material.IRON_BOOTS));
           
            Bukkit.getServer().getScheduler().runTaskLaterAsynchronously(this, new Runnable() {
                public void run() {
                p.addPotionEffect(new PotionEffect(PotionEffectType.WATER_BREATHING, 200, 2));
                }
            }, 20);
        }

    }

Error in console:

Code:

[19:27:14] [Craft Scheduler Thread - 3/WARN]: [ItemsOnRespawn] Plugin ItemsOnRespawn v1.0 generated an exception while executing task 9
java.lang.IllegalStateException: EntityPotionEffectEvent cannot be triggered asynchronously from another thread.
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:510) ~[server.jar:git-Bukkit-06efc9e]
        at org.bukkit.craftbukkit.v1_14_R1.event.CraftEventFactory.callEntityPotionEffectChangeEvent(CraftEventFactory.java:1400) ~[server.jar:git-Bukkit-06efc9e]
        at org.bukkit.craftbukkit.v1_14_R1.event.CraftEventFactory.callEntityPotionEffectChangeEvent(CraftEventFactory.java:1388) ~[server.jar:git-Bukkit-06efc9e]
        at net.minecraft.server.v1_14_R1.EntityLiving.addEffect(EntityLiving.java:841) ~[server.jar:git-Bukkit-06efc9e]
        at org.bukkit.craftbukkit.v1_14_R1.entity.CraftLivingEntity.addPotionEffect(CraftLivingEntity.java:317) ~[server.jar:git-Bukkit-06efc9e]
        at org.bukkit.craftbukkit.v1_14_R1.entity.CraftLivingEntity.addPotionEffect(CraftLivingEntity.java:306) ~[server.jar:git-Bukkit-06efc9e]
        at me.bukkit.itemsonrespawn.main$1.run(main.java:76) ~[?:?]
        at org.bukkit.craftbukkit.v1_14_R1.scheduler.CraftTask.run(CraftTask.java:77) ~[server.jar:git-Bukkit-06efc9e]
        at org.bukkit.craftbukkit.v1_14_R1.scheduler.CraftAsyncTask.run(CraftAsyncTask.java:54) [server.jar:git-Bukkit-06efc9e]
        at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [?:1.8.0_191]
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [?:1.8.0_191]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_191]

 

@ollethunberg Don't use 'runTaskLaterAsynchronously', just use 'runTaskLater'.