From 55578ab88c539765b79b2fac7c4cd875cf97ccfc Mon Sep 17 00:00:00 2001
From: BONNe <bonne@bonne.id.lv>
Date: Tue, 5 Feb 2019 09:23:49 +0200
Subject: [PATCH] Fix null-pointer crash when loading invalid challenge level.

---
 .../world/bentobox/challenges/ChallengesManager.java     | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/main/java/world/bentobox/challenges/ChallengesManager.java b/src/main/java/world/bentobox/challenges/ChallengesManager.java
index 6f6b44d..ab3e569 100644
--- a/src/main/java/world/bentobox/challenges/ChallengesManager.java
+++ b/src/main/java/world/bentobox/challenges/ChallengesManager.java
@@ -214,8 +214,15 @@ public class ChallengesManager
     {
         if (!this.isValidLevel(level))
         {
-            user.sendMessage("challenges.admin.import.error",
+            if (user != null)
+            {
+                user.sendMessage("challenges.admin.import.error",
                     "[object]", level.getFriendlyName());
+            }
+            else
+            {
+                this.addon.logError("Challenge Level '" + level.getUniqueId() + "' is not valid and skipped");
+            }
 
             return false;
         }