diff --git a/build.gradle.kts b/build.gradle.kts
index 5d08ed2..000a5a1 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -3,7 +3,7 @@
 plugins {
     kotlin("jvm") version "2.0.0"
     application
-    id("io.ktor.plugin") version "2.3.11"
+    id("io.ktor.plugin") version "2.3.12"
 }
 
 group = "net.taehui"
diff --git a/src/main/kotlin/net/taehui/twilight/Twilight.kt b/src/main/kotlin/net/taehui/twilight/Twilight.kt
index 1edd2cc..c710825 100644
--- a/src/main/kotlin/net/taehui/twilight/Twilight.kt
+++ b/src/main/kotlin/net/taehui/twilight/Twilight.kt
@@ -95,7 +95,6 @@
                 BannedIP.saveBannedIP()
                 BannedNote.saveBannedNote()
                 Configure.saveConfigure()
-                PIDClass.dispose()
             }
         }
     }
diff --git a/src/main/kotlin/net/taehui/twilight/system/AwilightHandler.kt b/src/main/kotlin/net/taehui/twilight/system/AwilightHandler.kt
index 5384b0e..e4bb19c 100644
--- a/src/main/kotlin/net/taehui/twilight/system/AwilightHandler.kt
+++ b/src/main/kotlin/net/taehui/twilight/system/AwilightHandler.kt
@@ -36,7 +36,7 @@
                     HttpClients.createDefault().use {
                         UnsafeByteOperations.unsafeWrap(
                             it.execute(
-                                HttpGet("https://source.unsplash.com/random"),
+                                HttpGet("https://picsum.photos/200"),
                                 HCDataHandler()
                             )
                         )
diff --git a/src/main/kotlin/net/taehui/twilight/system/DB.kt b/src/main/kotlin/net/taehui/twilight/system/DB.kt
index 448474b..2fe3826 100644
--- a/src/main/kotlin/net/taehui/twilight/system/DB.kt
+++ b/src/main/kotlin/net/taehui/twilight/system/DB.kt
@@ -3431,12 +3431,12 @@
                     INNER JOIN tw_note USING(Note_ID)
                     INNER JOIN tn_avatar ON tw_comment.Avatar = tn_avatar.Avatar_ID
                     WHERE Ability_7K > 0.0 AND ${
-                    getAbilityFilter(
-                        Component.DEFAULT_INPUT_FAVOR_MODE,
-                        Component.MODE_7_INPUT_FAVOR_MODE,
-                        Component.MODE_7_1_INPUT_FAVOR_MODE
-                    )
-                } AND Is_Max = true
+                        getAbilityFilter(
+                            Component.DEFAULT_INPUT_FAVOR_MODE,
+                            Component.MODE_7_INPUT_FAVOR_MODE,
+                            Component.MODE_7_1_INPUT_FAVOR_MODE
+                        )
+                    } AND Is_Max = true
                     ORDER BY Value DESC
                 """.trimIndent()
             ).use { dbStatement ->
@@ -3472,12 +3472,12 @@
                     INNER JOIN tw_note USING(Note_ID)
                     INNER JOIN tn_avatar ON tw_comment.Avatar = tn_avatar.Avatar_ID
                     WHERE Avatar = ? AND Ability_7K > 0.0 AND ${
-                    getAbilityFilter(
-                        Component.DEFAULT_INPUT_FAVOR_MODE,
-                        Component.MODE_7_INPUT_FAVOR_MODE,
-                        Component.MODE_7_1_INPUT_FAVOR_MODE
-                    )
-                } AND Is_Max = true
+                        getAbilityFilter(
+                            Component.DEFAULT_INPUT_FAVOR_MODE,
+                            Component.MODE_7_INPUT_FAVOR_MODE,
+                            Component.MODE_7_1_INPUT_FAVOR_MODE
+                        )
+                    } AND Is_Max = true
                     ORDER BY Value DESC
                     LIMIT 50
                 """.trimIndent()
@@ -3504,11 +3504,11 @@
                     INNER JOIN tw_note USING(Note_ID)
                     INNER JOIN tn_avatar ON tw_comment.Avatar = tn_avatar.Avatar_ID
                     WHERE Ability_9K > 0.0 AND ${
-                    getAbilityFilter(
-                        Component.DEFAULT_INPUT_FAVOR_MODE,
-                        Component.MODE_9_INPUT_FAVOR_MODE
-                    )
-                } AND Is_Max = true
+                        getAbilityFilter(
+                            Component.DEFAULT_INPUT_FAVOR_MODE,
+                            Component.MODE_9_INPUT_FAVOR_MODE
+                        )
+                    } AND Is_Max = true
                     ORDER BY Value DESC
                 """.trimIndent()
             ).use { dbStatement ->
diff --git a/src/main/kotlin/net/taehui/twilight/system/PIDClass.kt b/src/main/kotlin/net/taehui/twilight/system/PIDClass.kt
index 8d6ac15..a2a4f74 100644
--- a/src/main/kotlin/net/taehui/twilight/system/PIDClass.kt
+++ b/src/main/kotlin/net/taehui/twilight/system/PIDClass.kt
@@ -1,35 +1,21 @@
 package net.taehui.twilight.system
 
 import net.taehui.twilight.Logger
-import java.io.IOException
-import java.nio.channels.FileChannel
-import java.nio.file.Files
-import java.nio.file.Path
-import java.nio.file.StandardOpenOption
+import java.net.BindException
+import java.net.InetSocketAddress
+import java.nio.channels.DatagramChannel
 import kotlin.system.exitProcess
 
 object PIDClass : Logger {
-    private val FILE_PATH: Path = Path.of("Twilight.#")
-    private var fc: FileChannel? = null
+    private var datagramChannel: DatagramChannel? = null
 
     fun doHaveIt() {
         try {
-            fc = FileChannel.open(
-                FILE_PATH, StandardOpenOption.CREATE, StandardOpenOption.WRITE, StandardOpenOption.READ
-            )
-            try {
-                fc?.lock()
-            } catch (e: IOException) {
-                logFault(e)
-            }
-        } catch (e: IOException) {
+            datagramChannel = DatagramChannel.open()
+            datagramChannel?.bind(InetSocketAddress("localhost", 6101))
+        } catch (e: BindException) {
             logInfo("Twilight is already running")
             exitProcess(1)
         }
     }
-
-    fun dispose() {
-        fc?.close()
-        Files.deleteIfExists(FILE_PATH)
-    }
 }
\ No newline at end of file
diff --git a/src/main/kotlin/net/taehui/twilight/taehui/TaehuiAvatar.kt b/src/main/kotlin/net/taehui/twilight/taehui/TaehuiAvatar.kt
index fbf07cb..3f24c7e 100644
--- a/src/main/kotlin/net/taehui/twilight/taehui/TaehuiAvatar.kt
+++ b/src/main/kotlin/net/taehui/twilight/taehui/TaehuiAvatar.kt
@@ -26,11 +26,13 @@
 
         @Deprecated("hashAMD64")
         var hash = ""
+
         @Deprecated("hashAMD64")
         var hashX64 = ""
 
         @Deprecated("titleAMD64")
         var title = ""
+
         @Deprecated("titleAMD64")
         var titleX64 = ""
     }
@@ -56,8 +58,14 @@
         val path = URLDecoder.decode(msg.uri(), StandardCharsets.UTF_8)
         val mode = msg.method()
         logInfo("$mode $path")
-        if (mode == HttpMethod.PATCH) {
-            when (path) {
+        when (mode) {
+            HttpMethod.GET -> when (path) {
+                "/health" -> {
+                    send204(ctx)
+                }
+            }
+
+            HttpMethod.PATCH -> when (path) {
                 "/date/AMD64" -> {
                     val data = ByteBufUtil.getBytes(msg.content())
                     logFuture {
@@ -94,7 +102,8 @@
                     Configure.saveConfigure()
                     val jm = ObjectMapper()
                     val qwilightDateFilePath = Configure.path.wwwPath.resolve(Configure.path.datePath)
-                    val qwilightDate = jm.readValue(Files.readString(qwilightDateFilePath), QwilightDate::class.java)
+                    val qwilightDate =
+                        jm.readValue(Files.readString(qwilightDateFilePath), QwilightDate::class.java)
                     qwilightDate.date = date
                     qwilightDate.hashAMD64 = hashAMD64
                     qwilightDate.hashARM64 = hashARM64
@@ -116,16 +125,24 @@
                     send204(ctx)
                 }
 
-                else -> ctx.writeAndFlush(DefaultFullHttpResponse(HttpVersion.HTTP_1_1, HttpResponseStatus.NOT_FOUND))
-                    .addListener(
-                        ChannelFutureListener.CLOSE
+                else -> ctx.writeAndFlush(
+                    DefaultFullHttpResponse(
+                        HttpVersion.HTTP_1_1,
+                        HttpResponseStatus.NOT_FOUND
                     )
-            }
-        } else {
-            ctx.writeAndFlush(DefaultFullHttpResponse(HttpVersion.HTTP_1_1, HttpResponseStatus.METHOD_NOT_ALLOWED))
-                .addListener(
+                ).addListener(
                     ChannelFutureListener.CLOSE
                 )
+            }
+
+            else -> ctx.writeAndFlush(
+                DefaultFullHttpResponse(
+                    HttpVersion.HTTP_1_1,
+                    HttpResponseStatus.METHOD_NOT_ALLOWED
+                )
+            ).addListener(
+                ChannelFutureListener.CLOSE
+            )
         }
     }