diff --git a/AncapPluginAPI/src/main/java/ru/ancap/framework/plugin/api/AncapPlugin.java b/AncapPluginAPI/src/main/java/ru/ancap/framework/plugin/api/AncapPlugin.java
index 68857be3..9df484d1 100644
--- a/AncapPluginAPI/src/main/java/ru/ancap/framework/plugin/api/AncapPlugin.java
+++ b/AncapPluginAPI/src/main/java/ru/ancap/framework/plugin/api/AncapPlugin.java
@@ -109,14 +109,13 @@ protected void registerCommandExecutors() {
     }
 
     protected void loadLocales() {
-        VersionExtractor versionExtractor = new VersionExtractor("version");
         new LocaleLoader(
                 this.getLogger(),
                 this.newResourceSource(FileConfigurationPreparator.resolveConflicts(
                         (version) -> this.valueTransferMap() != null ?
                                 BuiltTransferMap.makeFor(this.valueTransferMap().getConfigurationSection("custom.LanguageAPI"), version) :
                                 BuiltTransferMap.EMPTY,
-                        versionExtractor.versionFieldName()
+                        "version"
                 ))
         ).run();
     }
@@ -146,19 +145,18 @@ private void loadPluginSettings() {
         this.settings = new AncapPluginSettings(this.newResourceSource(FileConfigurationPreparator.internal()).getResource("ancapplugin.yml"));
     }
     
-    private final Cache<FileConfiguration> configCache = new Cache<>(1_000_000_000);
-    
     protected ConfigurationSection getConfiguration() {
         return this.getConfiguration("configuration.yml");
     }
+
+    private final Cache<FileConfiguration> configCache = new Cache<>(1_000_000_000);
     
     protected ConfigurationSection getConfiguration(String fileName) {
-        VersionExtractor versionExtractor = new VersionExtractor("config-version");
         return this.configCache.get(() -> this.newResourceSource(FileConfigurationPreparator.resolveConflicts(
                 (version) -> this.valueTransferMap() != null ? 
                         BuiltTransferMap.makeFor(this.valueTransferMap().getConfigurationSection("main-domain."+fileName), version) :
                         BuiltTransferMap.EMPTY,
-                versionExtractor.versionFieldName()
+                "configuration-version"
         )).getResource(fileName));
     }
     
diff --git a/Artifex/configuration.yml b/Artifex/configuration.yml
index 38b4890c..5ed10344 100644
--- a/Artifex/configuration.yml
+++ b/Artifex/configuration.yml
@@ -1,5 +1,5 @@
 # не менять, отвечает за обновление конфига и автоперенос значений
-config-version: 1
+configuration-version: 1
 
 default-language: ru
 
diff --git a/Artifex/dependency-reduced-pom.xml b/Artifex/dependency-reduced-pom.xml
index 18d5a70b..e6f36567 100644
--- a/Artifex/dependency-reduced-pom.xml
+++ b/Artifex/dependency-reduced-pom.xml
@@ -8,7 +8,7 @@
   <modelVersion>4.0.0</modelVersion>
   <artifactId>Artifex</artifactId>
   <name>Artifex</name>
-  <version>1.6.1</version>
+  <version>1.6.3</version>
   <description>AncapAPI runtime part</description>
   <build>
     <finalName>artifex-v${version}</finalName>
diff --git a/Artifex/pom.xml b/Artifex/pom.xml
index 98ebde71..dceaf9b2 100644
--- a/Artifex/pom.xml
+++ b/Artifex/pom.xml
@@ -13,7 +13,7 @@
     <packaging>jar</packaging>
 
     <artifactId>Artifex</artifactId>
-    <version>1.6.1</version>
+    <version>1.6.3</version>
 
     <name>Artifex</name>
 
diff --git a/Artifex/src/main/java/ru/ancap/framework/artifex/implementation/command/center/AsyncCommandCenter.java b/Artifex/src/main/java/ru/ancap/framework/artifex/implementation/command/center/AsyncCommandCenter.java
index 624d341f..0d941538 100644
--- a/Artifex/src/main/java/ru/ancap/framework/artifex/implementation/command/center/AsyncCommandCenter.java
+++ b/Artifex/src/main/java/ru/ancap/framework/artifex/implementation/command/center/AsyncCommandCenter.java
@@ -44,7 +44,8 @@ public void initialize(AncapPlugin plugin) {
     public void setExecutor(String commandName, CommandOperator executor) throws CommandNotRegisteredException {
         CommandOperator previous = this.executeRules.get(commandName);
         if (previous == null) {
-            throw new CommandNotRegisteredException("Command "+commandName+" must be registered in ancapplugin.yml to set its executor!");
+            throw new CommandNotRegisteredException(
+                "Command " + commandName + " must be registered in ancapplugin.yml to set its executor!");
         }
         for (String alias : this.aliasesMap.get(commandName)) {
             this.executeRules.put(alias, executor);
@@ -55,11 +56,11 @@ public void setExecutor(String commandName, CommandOperator executor) throws Com
     @Override
     public void on(CommandDispatch dispatch) {
         this.operate(
-                dispatch.command(),
-                commandForm -> commandForm.commandOperator.on(
-                        new CommandDispatch(
-                                dispatch.source(),
-                                commandForm.command
+            dispatch.command(),
+            commandForm -> commandForm.commandOperator.on(
+                new CommandDispatch(
+                    dispatch.source(),
+                    commandForm.command
                 ))
         );
     }
@@ -67,15 +68,13 @@ public void on(CommandDispatch dispatch) {
     @Override
     public void on(CommandWrite write) {
         this.operate(
-                write.line(),
-                commandForm -> {
-                    commandForm.commandOperator.on(
-                            new CommandWrite(
-                                    write.speaker(),
-                                    commandForm.command
-                            )
-                    );
-                }
+            write.line(),
+            commandForm -> commandForm.commandOperator.on(
+                new CommandWrite(
+                    write.speaker(),
+                    commandForm.command
+                )
+            )
         );
     }
 
@@ -86,10 +85,10 @@ private void operate(LeveledCommand command, Consumer<CommandForm> commandFormCo
         new Thread(() -> {
             CommandOperator rule = this.executeRules.get(key);
             commandFormConsumer.accept(
-                    new CommandForm(
-                            finalCommand,
-                            rule
-                    )
+                new CommandForm(
+                    finalCommand,
+                    rule
+                )
             );
         }).start();
 
diff --git a/Artifex/src/main/java/ru/ancap/framework/artifex/implementation/language/input/LanguageChangeInput.java b/Artifex/src/main/java/ru/ancap/framework/artifex/implementation/language/input/LanguageChangeInput.java
index 649d788d..0eae7b13 100644
--- a/Artifex/src/main/java/ru/ancap/framework/artifex/implementation/language/input/LanguageChangeInput.java
+++ b/Artifex/src/main/java/ru/ancap/framework/artifex/implementation/language/input/LanguageChangeInput.java
@@ -13,27 +13,26 @@
 import ru.ancap.framework.command.api.commands.operator.delegate.subcommand.Raw;
 import ru.ancap.framework.command.api.commands.operator.delegate.subcommand.SubCommand;
 import ru.ancap.framework.command.api.commands.operator.delegate.subcommand.rule.delegate.StringDelegatePattern;
+import ru.ancap.framework.communicate.Communicator;
+import ru.ancap.framework.language.LAPI;
 import ru.ancap.framework.language.additional.LAPIMessage;
+import ru.ancap.framework.language.language.Language;
 
 public class LanguageChangeInput extends CommandTarget {
 
     public LanguageChangeInput() {
         super(new Delegate(
-                new Raw(
-                        new Advice(new LAPIMessage(Artifex.class, "command.language.enter-language"))
-                ),
-                new SubCommand(
-                        new StringDelegatePattern("set"),
-                        new Arguments(
-                                new Accept(
-                                        new Argument("language", new Self())
-                                ),
-                                dispatch -> Bukkit.getPluginManager().callEvent(new LanguageChangeEvent(
-                                        dispatch.source().sender(), 
-                                        dispatch.arguments().get("language", String.class)
-                                ))
-                        )
+            new Raw(new Advice(new LAPIMessage(Artifex.class, "command.language.enter-language"))),
+            new SubCommand(
+                new StringDelegatePattern("set"),
+                new Arguments(
+                    new Accept(new Argument("language", new Self())),
+                    dispatch -> {
+                        LAPI.setupLanguage(dispatch.source().sender().getName(), Language.of(dispatch.arguments().get("language", String.class)));
+                        new Communicator(dispatch.source().sender()).send(new LAPIMessage(Artifex.class, "command.language.setup"));
+                    }
                 )
+            )
         ));
     }
 
diff --git a/Artifex/src/main/resources/configuration.yml b/Artifex/src/main/resources/configuration.yml
index 38b4890c..5ed10344 100644
--- a/Artifex/src/main/resources/configuration.yml
+++ b/Artifex/src/main/resources/configuration.yml
@@ -1,5 +1,5 @@
 # не менять, отвечает за обновление конфига и автоперенос значений
-config-version: 1
+configuration-version: 1
 
 default-language: ru
 
diff --git a/CommandAPI/src/main/java/ru/ancap/framework/command/api/commands/operator/arguments/Argument.java b/CommandAPI/src/main/java/ru/ancap/framework/command/api/commands/operator/arguments/Argument.java
index bcbc24d9..aeb2f17f 100644
--- a/CommandAPI/src/main/java/ru/ancap/framework/command/api/commands/operator/arguments/Argument.java
+++ b/CommandAPI/src/main/java/ru/ancap/framework/command/api/commands/operator/arguments/Argument.java
@@ -1,9 +1,13 @@
 package ru.ancap.framework.command.api.commands.operator.arguments;
 
 import lombok.AllArgsConstructor;
+import lombok.EqualsAndHashCode;
+import lombok.ToString;
 import ru.ancap.framework.command.api.commands.operator.arguments.extractor.ArgumentExtractor;
 
 @AllArgsConstructor
+@ToString
+@EqualsAndHashCode
 public class Argument {
     
     private final String argumentName;
diff --git a/CommandAPI/src/main/java/ru/ancap/framework/command/api/commands/operator/arguments/Arguments.java b/CommandAPI/src/main/java/ru/ancap/framework/command/api/commands/operator/arguments/Arguments.java
index d82dd2fc..6187db0e 100644
--- a/CommandAPI/src/main/java/ru/ancap/framework/command/api/commands/operator/arguments/Arguments.java
+++ b/CommandAPI/src/main/java/ru/ancap/framework/command/api/commands/operator/arguments/Arguments.java
@@ -1,9 +1,12 @@
 package ru.ancap.framework.command.api.commands.operator.arguments;
 
 import lombok.AllArgsConstructor;
+import lombok.EqualsAndHashCode;
 import lombok.RequiredArgsConstructor;
+import lombok.ToString;
 import org.bukkit.Bukkit;
 import org.bukkit.command.CommandSender;
+import ru.ancap.commons.AncapDebug;
 import ru.ancap.framework.command.api.commands.object.dispatched.LeveledCommand;
 import ru.ancap.framework.command.api.commands.object.dispatched.exception.NoNextArgumentException;
 import ru.ancap.framework.command.api.commands.object.event.CommandDispatch;
@@ -34,8 +37,8 @@ public class Arguments implements CommandOperator {
     private final int requiredLiterals;
     private final Consumer<ArgumentCommandDispatch> dispatchConsumer;
 
-    public Arguments(BiConsumer<CommandSender, Integer> onNotEnough, List<Argument> arguments, Consumer<ArgumentCommandDispatch> dispatchConsumer) {
-        this(onNotEnough, Arguments.bindingsFor(arguments), arguments, Arguments.requiredLiteralsAmountFor(arguments), dispatchConsumer);
+    public Arguments(BiConsumer<CommandSender, Integer> onNotEnough, Accept accept, Consumer<ArgumentCommandDispatch> dispatchConsumer) {
+        this(onNotEnough, Arguments.bindingsFor(accept), accept, Arguments.requiredLiteralsAmountFor(accept), dispatchConsumer);
     }
     
     public Arguments(Accept accept, Consumer<ArgumentCommandDispatch> dispatchConsumer) {
@@ -51,6 +54,7 @@ private static Map<Integer, ArgumentsShard> bindingsFor(List<Argument> arguments
             int endIndex = lastStartIndex + size;
             ArgumentsShard shard = new ArgumentsShard(lastStartIndex, endIndex, argument);
             for (int cursor = lastStartIndex; cursor < endIndex; cursor++) map.put(cursor, shard);
+            lastStartIndex = endIndex + 1;
         }
         return map;
     }
@@ -152,6 +156,8 @@ public String closing() {
     }
     
     @AllArgsConstructor
+    @ToString
+    @EqualsAndHashCode
     private static class ArgumentsShard {
         
         private final int firstLiteralIndex;
diff --git a/CommandAPI/src/main/java/ru/ancap/framework/command/api/commands/operator/arguments/extractor/basic/PrimitiveExtractor.java b/CommandAPI/src/main/java/ru/ancap/framework/command/api/commands/operator/arguments/extractor/basic/PrimitiveExtractor.java
index 8a5c2e61..c35f0ccf 100644
--- a/CommandAPI/src/main/java/ru/ancap/framework/command/api/commands/operator/arguments/extractor/basic/PrimitiveExtractor.java
+++ b/CommandAPI/src/main/java/ru/ancap/framework/command/api/commands/operator/arguments/extractor/basic/PrimitiveExtractor.java
@@ -1,6 +1,8 @@
 package ru.ancap.framework.command.api.commands.operator.arguments.extractor.basic;
 
+import lombok.EqualsAndHashCode;
 import lombok.RequiredArgsConstructor;
+import lombok.ToString;
 import org.bukkit.command.CommandSender;
 import ru.ancap.framework.command.api.commands.object.dispatched.LeveledCommand;
 import ru.ancap.framework.command.api.commands.object.tab.Tab;
@@ -13,6 +15,8 @@
 import java.util.function.Function;
 
 @RequiredArgsConstructor
+@ToString
+@EqualsAndHashCode
 public abstract class PrimitiveExtractor<T> implements ArgumentExtractor<T> {
     
     private final Class<T> type;
diff --git a/ResourceAPI/src/main/java/ru/ancap/framework/resource/config/FileConfigurationPreparator.java b/ResourceAPI/src/main/java/ru/ancap/framework/resource/config/FileConfigurationPreparator.java
index 649c035d..6403c931 100644
--- a/ResourceAPI/src/main/java/ru/ancap/framework/resource/config/FileConfigurationPreparator.java
+++ b/ResourceAPI/src/main/java/ru/ancap/framework/resource/config/FileConfigurationPreparator.java
@@ -8,6 +8,7 @@
 import org.bukkit.configuration.file.FileConfiguration;
 import org.bukkit.configuration.file.YamlConfiguration;
 import org.jetbrains.annotations.NotNull;
+import ru.ancap.commons.AncapDebug;
 import ru.ancap.framework.resource.ResourcePreparator;
 
 import java.io.File;
@@ -21,7 +22,7 @@
 public class FileConfigurationPreparator implements ResourcePreparator<FileConfiguration> {
     
     private final Function<Integer, TransferMap> versionToMap;
-    private final String versionFieldName;
+    private String versionFieldName;
     private final boolean saveFiles;
     
     public static Builder builder() {
@@ -77,6 +78,7 @@ public FileConfiguration prepare(InputStream base, @NotNull File target) {
             case CONFLICT:
                 FileConfiguration userData = this.extract(new FileInputStream(target));
                 FileConfiguration softwareData = this.extract(base);
+                if (this.versionFieldName == null) this.versionFieldName = "dummy";
                 Function<ConfigurationSection, Integer> versionExtractor = new VersionExtractor(this.versionFieldName);
                 if (versionExtractor.apply(userData) == versionExtractor.apply(softwareData)) {
                     finalConfig = userData;