An error occurred during the `EntityDeathEvent` when attempting to use the `sendActionBar` method on a `Player`. This was due to the `sendActionBar` method not being available in certain Bukkit API versions, causing a `NoSuchMethodError`.

The issue arose because the `sendActionBar` method is not present in Bukkit versions prior to 1.19. To address this, different methods were used based on the server version: For Versions 1.18 and Below: Used reflection to send `ActionBar` messages via `PacketPlayOutChat`. - For Versions 1.19 and Above: Used the new API method `sendActionBar`. This adjustment ensures compatibility of the plugin across various Minecraft versions.