diff --git a/README.md b/README.md
index 1004501..b7fcc07 100644
--- a/README.md
+++ b/README.md
@@ -3,12 +3,13 @@
 Grasscutter Authentication System
 
 ### Version Compatibility
-| GCAuth        | Grasscutter Development | Grasscutter Stable |
-|---------------|-------------------------|--------------------|
-| 2.2.1+        | 1.1.2-dev               | -                  |
-| 2.1.4 - 2.1.6 | 1.1.1-dev               | -                  |
-| 2.0.0 - 2.1.3 | 1.0.3-dev               | 1.1.0              |
-| 1.0.0         | 1.0.2-dev               | -                  |
+| GCAuth        | Grasscutter Development                                                                                                        | Grasscutter Stable |
+|---------------|--------------------------------------------------------------------------------------------------------------------------------|--------------------|
+| 2.3.1+        | 1.1.2-dev ( [141b191](https://github.com/Grasscutters/Grasscutter/commit/ce07f56f9d10cc79c9b7104b66c2e4ff19cd4f53) and after ) | -                  |
+| 2.2.1 - 2.3.0 | 1.1.2-dev ( before [141b191](https://github.com/Grasscutters/Grasscutter/commit/ce07f56f9d10cc79c9b7104b66c2e4ff19cd4f53) )    | -                  |
+| 2.1.4 - 2.1.6 | 1.1.1-dev                                                                                                                      | -                  |
+| 2.0.0 - 2.1.3 | 1.0.3-dev                                                                                                                      | 1.1.0              |
+| 1.0.0         | 1.0.2-dev                                                                                                                      | -                  |
 
 ### Usage : 
 - Place jar inside plugins folder of Grasscutter.
diff --git a/build.gradle b/build.gradle
index d2b21c3..95fffcc 100644
--- a/build.gradle
+++ b/build.gradle
@@ -10,7 +10,7 @@ sourceCompatibility = 17
 targetCompatibility = 17
 
 group 'me.exzork.gcauth'
-version '2.3.0'
+version '2.3.1'
 
 repositories {
     mavenCentral()
diff --git a/src/main/java/me/exzork/gcauth/handler/GCAuthExternalAuthenticator.java b/src/main/java/me/exzork/gcauth/handler/GCAuthExternalAuthenticator.java
index 1683201..31bd248 100644
--- a/src/main/java/me/exzork/gcauth/handler/GCAuthExternalAuthenticator.java
+++ b/src/main/java/me/exzork/gcauth/handler/GCAuthExternalAuthenticator.java
@@ -56,7 +56,7 @@ public class GCAuthExternalAuthenticator implements ExternalAuthenticator {
             authResponse.success = false;
             authResponse.message = "UNKNOWN"; // ENG = "An unknown error has occurred..."
             authResponse.jwt = "";
-            Grasscutter.getLogger().error("[Dispatch] An error occurred while a user was logging in.");
+            GCAuth.getInstance().getLogger().error("[Dispatch] An error occurred while a user was logging in.");
             e.printStackTrace();
         }
         response.send(authResponse);
@@ -126,7 +126,7 @@ public class GCAuthExternalAuthenticator implements ExternalAuthenticator {
             authResponse.success = false;
             authResponse.message = "UNKNOWN"; // ENG = "An unknown error has occurred..."
             authResponse.jwt = "";
-            Grasscutter.getLogger().error("[Dispatch] An error occurred while creating an account.");
+            GCAuth.getInstance().getLogger().error("[Dispatch] An error occurred while creating an account.");
             e.printStackTrace();
         }
         if (authResponse.success) {
@@ -190,7 +190,7 @@ public class GCAuthExternalAuthenticator implements ExternalAuthenticator {
             authResponse.success = false;
             authResponse.message = "UNKNOWN"; // ENG = "An unknown error has occurred..."
             authResponse.jwt = "";
-            Grasscutter.getLogger().error("[Dispatch] Error while changing user password.");
+            GCAuth.getInstance().getLogger().error("[Dispatch] Error while changing user password.");
             e.printStackTrace();
         }
         response.send(authResponse);
diff --git a/src/main/java/me/exzork/gcauth/handler/GCAuthenticators.java b/src/main/java/me/exzork/gcauth/handler/GCAuthenticators.java
index d0fab2b..9d7b6b6 100644
--- a/src/main/java/me/exzork/gcauth/handler/GCAuthenticators.java
+++ b/src/main/java/me/exzork/gcauth/handler/GCAuthenticators.java
@@ -5,6 +5,7 @@ import emu.grasscutter.auth.AuthenticationSystem;
 import emu.grasscutter.auth.Authenticator;
 import emu.grasscutter.game.Account;
 import emu.grasscutter.server.http.objects.LoginResultJson;
+import me.exzork.gcauth.GCAuth;
 import me.exzork.gcauth.utils.Authentication;
 
 public class GCAuthenticators {
@@ -31,7 +32,7 @@ public class GCAuthenticators {
             response.data.account.token = account.generateSessionKey();
             response.data.account.email = account.getEmail();
 
-            Grasscutter.getLogger().info("[GCAuth] Client " + requestData.account + " logged in");
+            GCAuth.getInstance().getLogger().info("[GCAuth] Client " + requestData.account + " logged in");
             return response;
         }
     }
diff --git a/src/main/java/me/exzork/gcauth/utils/Authentication.java b/src/main/java/me/exzork/gcauth/utils/Authentication.java
index c91357c..716bd31 100644
--- a/src/main/java/me/exzork/gcauth/utils/Authentication.java
+++ b/src/main/java/me/exzork/gcauth/utils/Authentication.java
@@ -71,7 +71,7 @@ public final class Authentication {
         return JWT.create()
                 .withClaim("token", otp)
                 .withClaim("username", account.getUsername())
-                .withClaim("uid", account.getPlayerUid())
+                .withClaim("uid", account.getReservedPlayerUid())
                 .withExpiresAt(Date.from(Instant.ofEpochSecond(System.currentTimeMillis() / 1000 + GCAuth.getInstance().getConfig().jwtExpiration)))
                 .sign(key);
     }