From a4c7ec077b1b5320e1e303034d7e45d52060662d Mon Sep 17 00:00:00 2001
From: "Dylan K. Taylor" <odigiman@gmail.com>
Date: Thu, 18 Apr 2019 17:45:14 +0100
Subject: [PATCH] Fixed possible crash in ChunkRequestTask

---
 src/pocketmine/network/mcpe/ChunkRequestTask.php | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/pocketmine/network/mcpe/ChunkRequestTask.php b/src/pocketmine/network/mcpe/ChunkRequestTask.php
index 11bf7ae580..0337cf2c88 100644
--- a/src/pocketmine/network/mcpe/ChunkRequestTask.php
+++ b/src/pocketmine/network/mcpe/ChunkRequestTask.php
@@ -61,7 +61,9 @@ class ChunkRequestTask extends AsyncTask{
 
 	public function onError() : void{
 		$hook = $this->fetchLocal()["errorHook"];
-		$hook();
+		if($hook !== null){
+			$hook();
+		}
 	}
 
 	public function onCompletion() : void{