diff --git a/pluto-kotlin-client-sdk/build.gradle b/pluto-kotlin-client-sdk/build.gradle
index 9cf8586..ccda4f4 100644
--- a/pluto-kotlin-client-sdk/build.gradle
+++ b/pluto-kotlin-client-sdk/build.gradle
@@ -4,8 +4,8 @@ apply plugin: 'kotlin-android-extensions'
 apply plugin: 'maven-publish'
 
 buildscript {
-    ext.versionCode = 24
-    ext.versionName = '0.8.5'
+    ext.versionCode = 25
+    ext.versionName = '0.8.6'
 }
 
 android {
diff --git a/pluto-kotlin-client-sdk/src/main/java/com/mushare/plutosdk/PlutoResponse.kt b/pluto-kotlin-client-sdk/src/main/java/com/mushare/plutosdk/PlutoResponse.kt
index 3219e95..3f81f99 100644
--- a/pluto-kotlin-client-sdk/src/main/java/com/mushare/plutosdk/PlutoResponse.kt
+++ b/pluto-kotlin-client-sdk/src/main/java/com/mushare/plutosdk/PlutoResponse.kt
@@ -51,11 +51,15 @@ internal fun parseErrorCodeFromErrorBody(errorBody: ResponseBody?, gson: Gson):
     }
     val response = gson.fromJson(errorBody.string(), PlutoResponse::class.java)
     val plutoError = response?.errorCode ?: PlutoError.badRequest
-    when(plutoError) {
+    when (plutoError) {
         PlutoError.invalidRefreshToken, PlutoError.invalidAccessToken -> {
             Pluto.getInstance()?.let {
-                it.data.clear()
-                it.state.value = Pluto.State.invalidRefreshToken
+                // Skip clearing data if refreshToken is null
+                // If refreshToken is null, it represents the not sign in state.
+                if (it.state != Pluto.State.invalidRefreshToken && it.data.refreshToken != null) {
+                    it.data.clear()
+                    it.state.value = Pluto.State.invalidRefreshToken
+                }
             }
         }
     }