Added some checks for some events that may be fired before player data is loaded, causing errors, example:
Code (Text):
18.10 14:35:26 [Server] INFO Caused by: java.lang.NullPointerException: Cannot invoke "com.floodeer.speedrun.game.GamePlayer.isInGame()" because "gp" is null
18.10 14:35:26 [Server] INFO at com.floodeer.speedrun.listener.PlayerEvent.onPickup(PlayerEvent.java:182) ~[?:?]