diff --git a/LaunchServer/src/main/java/pro/gravit/launchserver/LaunchServerStarter.java b/LaunchServer/src/main/java/pro/gravit/launchserver/LaunchServerStarter.java
index cab9413e..59890706 100644
--- a/LaunchServer/src/main/java/pro/gravit/launchserver/LaunchServerStarter.java
+++ b/LaunchServer/src/main/java/pro/gravit/launchserver/LaunchServerStarter.java
@@ -28,10 +28,7 @@
 import pro.gravit.utils.helper.JVMHelper;
 import pro.gravit.utils.helper.LogHelper;
 
-import java.io.BufferedReader;
-import java.io.BufferedWriter;
-import java.io.IOException;
-import java.io.Writer;
+import java.io.*;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.security.Security;
@@ -148,23 +145,33 @@ public LaunchServerRuntimeConfig readRuntimeConfig() throws IOException {
 
             @Override
             public void writeConfig(LaunchServerConfig config) throws IOException {
-                try (Writer writer = IOHelper.newWriter(configFile)) {
+                ByteArrayOutputStream output = new ByteArrayOutputStream();
+                try (Writer writer = IOHelper.newWriter(output)) {
+                    if (Launcher.gsonManager.configGson != null) {
+                        Launcher.gsonManager.configGson.toJson(config, writer);
+                    } else {
+                        logger.error("Error writing LaunchServer config file. Gson is null");
+                    }
+                }
+                byte[] bytes = output.toByteArray();
+                if(bytes.length > 0) {
+                    IOHelper.write(configFile, bytes);
+                }
+            }
+
+            @Override
+            public void writeRuntimeConfig(LaunchServerRuntimeConfig config) throws IOException {
+                ByteArrayOutputStream output = new ByteArrayOutputStream();
+                try (Writer writer = IOHelper.newWriter(output)) {
                     if (Launcher.gsonManager.configGson != null) {
                         Launcher.gsonManager.configGson.toJson(config, writer);
                     } else {
                         logger.error("Error writing LaunchServer runtime config file. Gson is null");
                     }
                 }
-            }
-
-            @Override
-            public void writeRuntimeConfig(LaunchServerRuntimeConfig config) throws IOException {
-                try (Writer writer = IOHelper.newWriter(runtimeConfigFile)) {
-                    if (Launcher.gsonManager.configGson != null) {
-                        Launcher.gsonManager.configGson.toJson(config, writer);
-                    } else {
-                        logger.error("Error writing LaunchServer runtime config file. Gson is null");
-                    }
+                byte[] bytes = output.toByteArray();
+                if(bytes.length > 0) {
+                    IOHelper.write(runtimeConfigFile, bytes);
                 }
             }
         };
diff --git a/LaunchServer/src/main/java/pro/gravit/launchserver/auth/PostgreSQLSourceConfig.java b/LaunchServer/src/main/java/pro/gravit/launchserver/auth/PostgreSQLSourceConfig.java
index bb4c6e4a..16731436 100644
--- a/LaunchServer/src/main/java/pro/gravit/launchserver/auth/PostgreSQLSourceConfig.java
+++ b/LaunchServer/src/main/java/pro/gravit/launchserver/auth/PostgreSQLSourceConfig.java
@@ -28,8 +28,8 @@ public final class PostgreSQLSourceConfig implements AutoCloseable, SQLSourceCon
     private String database;
 
     // Cache
-    private DataSource source;
-    private boolean hikari;
+    private transient DataSource source;
+    private transient boolean hikari;
 
     @Override
     public synchronized void close() {
diff --git a/LaunchServer/src/main/java/pro/gravit/launchserver/auth/core/AbstractSQLCoreProvider.java b/LaunchServer/src/main/java/pro/gravit/launchserver/auth/core/AbstractSQLCoreProvider.java
index 66b5f4b4..914b67e0 100644
--- a/LaunchServer/src/main/java/pro/gravit/launchserver/auth/core/AbstractSQLCoreProvider.java
+++ b/LaunchServer/src/main/java/pro/gravit/launchserver/auth/core/AbstractSQLCoreProvider.java
@@ -238,7 +238,7 @@ public void close() throws IOException {
         getSQLConfig().close();
     }
 
-    private SQLUser constructUser(ResultSet set) throws SQLException {
+    protected SQLUser constructUser(ResultSet set) throws SQLException {
         return set.next() ? new SQLUser(UUID.fromString(set.getString(uuidColumn)), set.getString(usernameColumn),
                 set.getString(accessTokenColumn), set.getString(serverIDColumn), set.getString(passwordColumn), requestPermissions(set.getString(uuidColumn))) : null;
     }
diff --git a/LaunchServer/src/main/java/pro/gravit/launchserver/auth/core/MySQLCoreProvider.java b/LaunchServer/src/main/java/pro/gravit/launchserver/auth/core/MySQLCoreProvider.java
index 427efcbb..dc9c6467 100644
--- a/LaunchServer/src/main/java/pro/gravit/launchserver/auth/core/MySQLCoreProvider.java
+++ b/LaunchServer/src/main/java/pro/gravit/launchserver/auth/core/MySQLCoreProvider.java
@@ -63,7 +63,8 @@ public void init(LaunchServer server) {
         sqlUpdateUsers = String.format("UPDATE %s SET `%s` = ? WHERE `%s` = ?", table, hardwareIdColumn, uuidColumn);
     }
 
-    private MySQLUser constructUser(ResultSet set) throws SQLException {
+    @Override
+    protected MySQLUser constructUser(ResultSet set) throws SQLException {
         return set.next() ? new MySQLUser(UUID.fromString(set.getString(uuidColumn)), set.getString(usernameColumn),
                 set.getString(accessTokenColumn), set.getString(serverIDColumn), set.getString(passwordColumn), requestPermissions(set.getString(uuidColumn)), set.getLong(hardwareIdColumn)) : null;
     }
diff --git a/LaunchServer/src/main/java/pro/gravit/launchserver/launchermodules/LauncherModuleLoader.java b/LaunchServer/src/main/java/pro/gravit/launchserver/launchermodules/LauncherModuleLoader.java
index b57bbd04..7b20a2d9 100644
--- a/LaunchServer/src/main/java/pro/gravit/launchserver/launchermodules/LauncherModuleLoader.java
+++ b/LaunchServer/src/main/java/pro/gravit/launchserver/launchermodules/LauncherModuleLoader.java
@@ -150,6 +150,9 @@ public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IO
                                     } else {
                                         try (Reader reader = IOHelper.newReader(configPath)) {
                                             targetConfig = Launcher.gsonManager.configGson.fromJson(reader, clazz);
+                                        } catch (Exception e) {
+                                            logger.error("Error when reading config {} in module {}: {}", configPath, file, e);
+                                            return super.visitFile(file, attrs);
                                         }
                                     }
                                     if (entity.propertyMap == null) entity.propertyMap = new HashMap<>();
diff --git a/LauncherCore/src/main/java/pro/gravit/utils/Version.java b/LauncherCore/src/main/java/pro/gravit/utils/Version.java
index 34cf2ce5..99062749 100644
--- a/LauncherCore/src/main/java/pro/gravit/utils/Version.java
+++ b/LauncherCore/src/main/java/pro/gravit/utils/Version.java
@@ -6,7 +6,7 @@ public final class Version implements Comparable<Version> {
 
     public static final int MAJOR = 5;
     public static final int MINOR = 3;
-    public static final int PATCH = 2;
+    public static final int PATCH = 3;
     public static final int BUILD = 1;
     public static final Version.Type RELEASE = Type.STABLE;
     public final int major;
diff --git a/build.gradle b/build.gradle
index 1b8f9b54..5156e367 100644
--- a/build.gradle
+++ b/build.gradle
@@ -5,7 +5,7 @@
     id 'org.openjfx.javafxplugin' version '0.0.10' apply false
 }
 group = 'pro.gravit.launcher'
-version = '5.3.2'
+version = '5.3.3'
 
 apply from: 'props.gradle'