fix NPE

nms/v1_10_R1/src/main/java/net/jitse/npclib/nms/v1_10_R1/NPC_v1_10_R1.java

@@ -103,7 +103,7 @@ public class NPC_v1_10_R1 extends NPCBase {
         playerConnection.sendPacket(packetPlayOutEntityDestroy);
         playerConnection.sendPacket(packetPlayOutPlayerInfoRemove);
 
-        hologram.hide(player);
+        getPlayerHologram(player).hide(player);
     }
 
     @Override

nms/v1_11_R1/src/main/java/net/jitse/npclib/nms/v1_11_R1/NPC_v1_11_R1.java

@@ -103,7 +103,7 @@ public class NPC_v1_11_R1 extends NPCBase {
         playerConnection.sendPacket(packetPlayOutEntityDestroy);
         playerConnection.sendPacket(packetPlayOutPlayerInfoRemove);
 
-        hologram.hide(player);
+        getPlayerHologram(player).hide(player);
     }
 
     @Override

nms/v1_12_R1/src/main/java/net/jitse/npclib/nms/v1_12_R1/NPC_v1_12_R1.java

@@ -103,7 +103,7 @@ public class NPC_v1_12_R1 extends NPCBase {
         playerConnection.sendPacket(packetPlayOutEntityDestroy);
         playerConnection.sendPacket(packetPlayOutPlayerInfoRemove);
 
-        hologram.hide(player);
+        getPlayerHologram(player).hide(player);
     }
 
     @Override

nms/v1_13_R1/src/main/java/net/jitse/npclib/nms/v1_13_R1/NPC_v1_13_R1.java

@@ -103,7 +103,7 @@ public class NPC_v1_13_R1 extends NPCBase {
         playerConnection.sendPacket(packetPlayOutEntityDestroy);
         playerConnection.sendPacket(packetPlayOutPlayerInfoRemove);
 
-        hologram.hide(player);
+        getPlayerHologram(player).hide(player);
     }
 
     @Override

nms/v1_13_R2/src/main/java/net/jitse/npclib/nms/v1_13_R2/NPC_v1_13_R2.java

@@ -102,7 +102,7 @@ public class NPC_v1_13_R2 extends NPCBase {
         playerConnection.sendPacket(packetPlayOutEntityDestroy);
         playerConnection.sendPacket(packetPlayOutPlayerInfoRemove);
 
-        hologram.hide(player);
+        getPlayerHologram(player).hide(player);
     }
 
     @Override

nms/v1_14_R1/src/main/java/net/jitse/npclib/nms/v1_14_R1/NPC_v1_14_R1.java

@@ -98,7 +98,7 @@ public class NPC_v1_14_R1 extends NPCBase {
         playerConnection.sendPacket(packetPlayOutEntityDestroy);
         playerConnection.sendPacket(packetPlayOutPlayerInfoRemove);
 
-        hologram.hide(player);
+        getPlayerHologram(player).hide(player);
     }
 
     @Override

nms/v1_15_R1/src/main/java/net/jitse/npclib/nms/v1_15_R1/NPC_v1_15_R1.java

@@ -99,7 +99,7 @@ public class NPC_v1_15_R1 extends NPCBase {
         playerConnection.sendPacket(packetPlayOutEntityDestroy);
         playerConnection.sendPacket(packetPlayOutPlayerInfoRemove);
 
-        hologram.hide(player);
+        getPlayerHologram(player).hide(player);
     }
 
     @Override

nms/v1_16_R1/src/main/java/net/jitse/npclib/nms/v1_16_R1/NPC_v1_16_R1.java

@@ -102,7 +102,7 @@ public class NPC_v1_16_R1 extends NPCBase {
         playerConnection.sendPacket(packetPlayOutEntityDestroy);
         playerConnection.sendPacket(packetPlayOutPlayerInfoRemove);
 
-        hologram.hide(player);
+        getPlayerHologram(player).hide(player);
     }
 
     @Override

nms/v1_8_R2/src/main/java/net/jitse/npclib/nms/v1_8_R2/NPC_v1_8_R2.java

@@ -103,7 +103,7 @@ public class NPC_v1_8_R2 extends NPCBase {
 
         playerConnection.sendPacket(packetPlayOutEntityDestroy);
         playerConnection.sendPacket(packetPlayOutPlayerInfoRemove);
-        hologram.hide(player);
+        getPlayerHologram(player).hide(player);
     }
 
     @Override

nms/v1_8_R3/src/main/java/net/jitse/npclib/nms/v1_8_R3/NPC_v1_8_R3.java

@@ -102,7 +102,7 @@ public class NPC_v1_8_R3 extends NPCBase {
         playerConnection.sendPacket(packetPlayOutEntityDestroy);
         playerConnection.sendPacket(packetPlayOutPlayerInfoRemove);
 
-        hologram.hide(player);
+        getPlayerHologram(player).hide(player);
     }
 
     @Override

nms/v1_9_R1/src/main/java/net/jitse/npclib/nms/v1_9_R1/NPC_v1_9_R1.java

@@ -103,7 +103,7 @@ public class NPC_v1_9_R1 extends NPCBase {
         playerConnection.sendPacket(packetPlayOutEntityDestroy);
         playerConnection.sendPacket(packetPlayOutPlayerInfoRemove);
 
-        hologram.hide(player);
+        getPlayerHologram(player).hide(player);
     }
 
     @Override

nms/v1_9_R2/src/main/java/net/jitse/npclib/nms/v1_9_R2/NPC_v1_9_R2.java

@@ -104,7 +104,7 @@ public class NPC_v1_9_R2 extends NPCBase {
         playerConnection.sendPacket(packetPlayOutEntityDestroy);
         playerConnection.sendPacket(packetPlayOutPlayerInfoRemove);
 
-        hologram.hide(player);
+        getPlayerHologram(player).hide(player);
     }
 
     @Override