Add reset command to fix issues when changing time unit

build.gradle

@@ -3,7 +3,7 @@ apply plugin: 'eclipse'
 
 sourceCompatibility = 1.8
 targetCompatibility = 1.8
-version = '1.7.3'
+version = '1.7.4'
 group = "io.github.hsyyid"
 archivesBaseName = "Kits"
 
@@ -26,7 +26,7 @@ repositories {
 }
 
 dependencies {
-	compile "org.spongepowered:spongeapi:4.0.0"
+	compile "org.spongepowered:spongeapi:4.0.3"
 	compile "com.github.Flibio:Updatifier:v1.0.0"
 }
 

src/main/java/io/github/hsyyid/kits/Kits.java

@@ -9,6 +9,7 @@
 import io.github.hsyyid.kits.cmds.KitIntervalExecutor;
 import io.github.hsyyid.kits.cmds.KitListExecutor;
 import io.github.hsyyid.kits.cmds.KitReloadExecutor;
+import io.github.hsyyid.kits.cmds.KitResetExecutor;
 import io.github.hsyyid.kits.config.BookConfig;
 import io.github.hsyyid.kits.config.Config;
 import io.github.hsyyid.kits.config.KitsConfig;
@@ -163,6 +164,13 @@ public void onServerInit(GameInitializationEvent event)
 			.executor(new KitReloadExecutor())
 			.extendedDescription(Text.of("To reload the config, simply do /kit reload"))
 			.build());
+
+		subcommands.put(Arrays.asList("reset"), CommandSpec.builder()
+			.permission("kits.reset")
+			.description(Text.of("Reset the Kit Player Times"))
+			.arguments(GenericArguments.onlyOne(GenericArguments.string(Text.of("kit"))))
+			.executor(new KitResetExecutor())
+			.build());
 
 		CommandSpec kitCommandSpec = CommandSpec.builder()
 			.extendedDescription(Text.of("Kit Command"))

src/main/java/io/github/hsyyid/kits/PluginInfo.java

@@ -7,6 +7,6 @@ public abstract class PluginInfo
 {
 	public static final String ID = "io.github.hsyyid.kits";
 	public static final String NAME = "Kits";
-	public static final String VERSION = "1.7.3";
+	public static final String VERSION = "1.7.4";
 	public static final String DESCRIPTION = "This plugin adds Kits, which are sets of items that players can claim through commands.";
 }

src/main/java/io/github/hsyyid/kits/cmds/KitResetExecutor.java

@@ -0,0 +1,28 @@
+package io.github.hsyyid.kits.cmds;
+
+import io.github.hsyyid.kits.Kits;
+import org.spongepowered.api.command.CommandException;
+import org.spongepowered.api.command.CommandResult;
+import org.spongepowered.api.command.CommandSource;
+import org.spongepowered.api.command.args.CommandContext;
+import org.spongepowered.api.command.spec.CommandExecutor;
+import org.spongepowered.api.text.Text;
+import org.spongepowered.api.text.format.TextColors;
+
+public class KitResetExecutor implements CommandExecutor
+{
+	public CommandResult execute(CommandSource src, CommandContext ctx) throws CommandException
+	{
+		String kit = ctx.<String> getOne("kit").get();
+
+		Kits.remainingTime.forEach((k, v) -> {
+			if (v.containsKey(kit))
+			{
+				v.remove(kit);
+			}
+		});
+
+		src.sendMessage(Text.of(TextColors.GREEN, "Success: ", TextColors.YELLOW, "Reset the player times for specified Kit."));
+		return CommandResult.success();
+	}
+}

src/main/java/io/github/hsyyid/kits/utils/ConfigManager.java

@@ -316,15 +316,11 @@ public static Optional<String> getDefaultKit()
 		{
 			return Optional.of(valueNode.getString());
 		}
-		else if (valueNode.getValue() == null)
+		else
 		{
 			Configs.setValue(config, valueNode.getPath(), "default");
 			return Optional.of("default");
 		}
-		else
-		{
-			return Optional.empty();
-		}
 	}
 
 	public static Text getBookTitle()