diff --git a/src/main/java/net/Indyuce/mmocore/api/player/CombatRunnable.java b/src/main/java/net/Indyuce/mmocore/api/player/CombatRunnable.java
index bac84f9c..b7092169 100644
--- a/src/main/java/net/Indyuce/mmocore/api/player/CombatRunnable.java
+++ b/src/main/java/net/Indyuce/mmocore/api/player/CombatRunnable.java
@@ -29,7 +29,7 @@ public class CombatRunnable extends BukkitRunnable {
 
 	@Override
 	public void run() {
-		if (lastHit + 10000 < System.currentTimeMillis()) {
+		if (lastHit + (config.combatLogTimer * 100) < System.currentTimeMillis()) {
 			Bukkit.getPluginManager().callEvent(new PlayerCombatEvent(player, false));
 			config.getSimpleMessage("leave-combat").send(player.getPlayer());
 			close();
diff --git a/src/main/java/net/Indyuce/mmocore/listener/BlockListener.java b/src/main/java/net/Indyuce/mmocore/listener/BlockListener.java
index 8fb16ba4..e5450e06 100644
--- a/src/main/java/net/Indyuce/mmocore/listener/BlockListener.java
+++ b/src/main/java/net/Indyuce/mmocore/listener/BlockListener.java
@@ -24,6 +24,7 @@ import net.Indyuce.mmocore.manager.CustomBlockManager.BlockInfo;
 import net.Indyuce.mmocore.manager.RestrictionManager.BlockPermissions;
 import net.Indyuce.mmoitems.MMOItems;
 import net.Indyuce.mmoitems.api.CustomBlock;
+import net.mmogroup.mmolib.MMOLib;
 
 public class BlockListener implements Listener {
 	private static final BlockFace[] order = { BlockFace.UP, BlockFace.DOWN, BlockFace.EAST, BlockFace.NORTH, BlockFace.WEST, BlockFace.SOUTH };
@@ -34,7 +35,7 @@ public class BlockListener implements Listener {
 		if (player.getGameMode() == GameMode.CREATIVE)
 			return;
 
-		String savedData = event.getBlock().getBlockData().getAsString();
+		String savedData = MMOLib.plugin.getVersion().isStrictlyHigher(1, 12) ? event.getBlock().getBlockData().getAsString() : "";
 		Block block = event.getBlock();
 		/*
 		 * if custom mining enabled, check for item breaking restrictions
@@ -104,8 +105,12 @@ public class BlockListener implements Listener {
 			/*
 			 * enable block regen.
 			 */
-			if (info.hasRegen())
-				MMOCore.plugin.mineManager.initialize(info.generateRegenInfo(Bukkit.createBlockData(savedData), block.getLocation()));
+			if (info.hasRegen()) {
+				if(MMOLib.plugin.getVersion().isStrictlyHigher(1, 12))
+					MMOCore.plugin.mineManager.initialize(info.generateRegenInfo(Bukkit.createBlockData(savedData), block.getLocation()));
+				else
+					MMOCore.plugin.mineManager.initialize(info.generateRegenInfo(block.getLocation()));
+			}
 		}
 	}
 
diff --git a/src/main/java/net/Indyuce/mmocore/listener/PlayerListener.java b/src/main/java/net/Indyuce/mmocore/listener/PlayerListener.java
index 65ed8e06..b282e7a5 100644
--- a/src/main/java/net/Indyuce/mmocore/listener/PlayerListener.java
+++ b/src/main/java/net/Indyuce/mmocore/listener/PlayerListener.java
@@ -50,16 +50,16 @@ public class PlayerListener implements Listener {
 	 */
 	@EventHandler(priority = EventPriority.HIGHEST, ignoreCancelled = true)
 	public void d(EntityDamageByEntityEvent event) {
-		if (event.getEntity().hasMetadata("NPC"))
-			return;
-		if (event.getEntity() instanceof Player)
+		if (event.getEntity() instanceof Player && !event.getEntity().hasMetadata("NPC"))
 			PlayerData.get((Player) event.getEntity()).updateCombat();
 
-		if (event.getDamager() instanceof Player)
+		if (event.getDamager() instanceof Player && !event.getDamager().hasMetadata("NPC"))
 			PlayerData.get((Player) event.getDamager()).updateCombat();
 
-		if (event.getDamager() instanceof Projectile && ((Projectile) event.getDamager()).getShooter() instanceof Player)
+		if (event.getDamager() instanceof Projectile && ((Projectile) event.getDamager()).getShooter() instanceof Player) {
+			if(((Player) ((Projectile) event.getDamager()).getShooter()).hasMetadata("NPC")) return;
 			PlayerData.get((Player) ((Projectile) event.getDamager()).getShooter()).updateCombat();
+		}
 	}
 
 	@EventHandler
diff --git a/src/main/java/net/Indyuce/mmocore/manager/ConfigManager.java b/src/main/java/net/Indyuce/mmocore/manager/ConfigManager.java
index 17e85ff3..02083b0b 100644
--- a/src/main/java/net/Indyuce/mmocore/manager/ConfigManager.java
+++ b/src/main/java/net/Indyuce/mmocore/manager/ConfigManager.java
@@ -30,6 +30,7 @@ public class ConfigManager {
 	public double expPartyBuff, regenPartyBuff;
 	public String partyChatPrefix;
 	public ChatColor manaFull, manaHalf, manaEmpty, staminaFull, staminaHalf, staminaEmpty;
+	public int combatLogTimer;
 
 	public final DecimalFormatSymbols formatSymbols = new DecimalFormatSymbols();
 	public final DecimalFormat decimal = new DecimalFormat("0.#", formatSymbols), decimals = new DecimalFormat("0.##", formatSymbols);
@@ -100,6 +101,7 @@ public class ConfigManager {
 		regenPartyBuff = MMOCore.plugin.getConfig().getDouble("party.buff.health-regen");
 		partyChatPrefix = MMOCore.plugin.getConfig().getString("party.chat-prefix");
 		formatSymbols.setDecimalSeparator(getFirstChar(MMOCore.plugin.getConfig().getString("number-format.decimal-separator"), ','));
+		combatLogTimer = MMOCore.plugin.getConfig().getInt("combat-log.timer");
 
 		manaFull = getColorOrDefault("mana-whole", ChatColor.BLUE);
 		manaHalf = getColorOrDefault("mana-half", ChatColor.AQUA);
diff --git a/src/main/java/net/Indyuce/mmocore/manager/CustomBlockManager.java b/src/main/java/net/Indyuce/mmocore/manager/CustomBlockManager.java
index b9b3220f..58ce60a3 100644
--- a/src/main/java/net/Indyuce/mmocore/manager/CustomBlockManager.java
+++ b/src/main/java/net/Indyuce/mmocore/manager/CustomBlockManager.java
@@ -82,11 +82,11 @@ public class CustomBlockManager extends MMOManager {
 		if(MMOCore.plugin.isMILoaded() && info.getRegen().getCustomRegenBlockID() != 0) {
 			CustomBlock block = MMOItems.plugin.getCustomBlocks().getBlock(info.getRegen().getCustomRegenBlockID());
 			info.getLocation().getBlock().setType(block.getType());
-			info.getLocation().getBlock().setBlockData(block.getBlockData());
+			if(MMOLib.plugin.getVersion().isStrictlyHigher(1, 12)) info.getLocation().getBlock().setBlockData(block.getBlockData());
 		}
 		else info.getLocation().getBlock().setType(info.getRegen().getTemporaryBlock());
 		if(isPlayerSkull(info.getLocation().getBlock().getType())) {
-			if(isPlayerSkull(info.getRegen().getBlock())) info.getLocation().getBlock().setBlockData(info.getBlockData());
+			if(isPlayerSkull(info.getRegen().getBlock()) && MMOLib.plugin.getVersion().isStrictlyHigher(1, 12)) info.getLocation().getBlock().setBlockData(info.getBlockData());
 			MMOLib.plugin.getNMS().setSkullValue(info.getLocation().getBlock(), info.getRegen().getRegenHeadValue());
 		}
 
@@ -96,7 +96,8 @@ public class CustomBlockManager extends MMOManager {
 	}
 	
 	private void regen(RegenInfo info) {
-		info.getLocation().getBlock().setBlockData(info.getBlockData());
+		if(MMOLib.plugin.getVersion().isStrictlyHigher(1, 12))
+			info.getLocation().getBlock().setBlockData(info.getBlockData());
 		if(isPlayerSkull(info.getLocation().getBlock().getType()))
 			MMOLib.plugin.getNMS().setSkullValue(info.getLocation().getBlock(), info.getRegen().getHeadValue());
 		active.remove(info);
@@ -216,6 +217,10 @@ public class CustomBlockManager extends MMOManager {
 			return new RegenInfo(data, loc, this);
 		}
 		
+		public RegenInfo generateRegenInfo(Location loc) {
+			return new RegenInfo(null, loc, this);
+		}
+		
 		public int getCustomBlockID() {
 			return customBlockId;
 		}
diff --git a/src/main/resources/config.yml b/src/main/resources/config.yml
index c20a1215..17ecf8e5 100644
--- a/src/main/resources/config.yml
+++ b/src/main/resources/config.yml
@@ -91,6 +91,10 @@ use-chat-input: true
 # Prevents mobs spawned from spawners from giving XP points.
 prevent-spawner-xp: true
 
+#Timer for combat log to expire (in seconds)
+combat-log:
+    timer: 10
+
 # Change this to the name of the color you want for
 # the different resource bar placeholders
 resource-bar-colors: