---- Hello Minecraft! Crash Report ----
  Version: 3.5.3
  Time: 2023-01-24 15:55:47
  Thread: Thread[JavaFX Application Thread,5,main]

  Content:
    java.util.concurrent.CompletionException: com.google.gson.JsonSyntaxException: java.lang.IllegalStateException: Expected BEGIN_OBJECT but was STRING at line 1 column 1 path $
    at java.util.concurrent.CompletableFuture.encodeThrowable(Unknown Source)
    at java.util.concurrent.CompletableFuture.completeThrowable(Unknown Source)
    at java.util.concurrent.CompletableFuture$AsyncRun.run(Unknown Source)
    at com.sun.javafx.application.PlatformImpl.lambda$null$5(PlatformImpl.java:295)
    at java.security.AccessController.doPrivileged(Native Method)
    at com.sun.javafx.application.PlatformImpl.lambda$runLater$6(PlatformImpl.java:294)
    at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)
    at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
    at com.sun.glass.ui.win.WinApplication.lambda$null$4(WinApplication.java:185)
    at java.lang.Thread.run(Unknown Source)
Caused by: com.google.gson.JsonSyntaxException: java.lang.IllegalStateException: Expected BEGIN_OBJECT but was STRING at line 1 column 1 path $
    at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.read(ReflectiveTypeAdapterFactory.java:224)
    at org.jackhuang.hmcl.util.gson.ValidationTypeAdapterFactory$1.read(ValidationTypeAdapterFactory.java:57)
    at com.google.gson.Gson.fromJson(Gson.java:887)
    at com.google.gson.Gson.fromJson(Gson.java:852)
    at com.google.gson.Gson.fromJson(Gson.java:801)
    at org.jackhuang.hmcl.game.DefaultGameRepository.readModpackConfiguration(DefaultGameRepository.java:519)
    at org.jackhuang.hmcl.ui.versions.GameItem.lambda$new$2(GameItem.java:82)
    ... 8 more
Caused by: java.lang.IllegalStateException: Expected BEGIN_OBJECT but was STRING at line 1 column 1 path $
    at com.google.gson.stream.JsonReader.beginObject(JsonReader.java:385)
    at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.read(ReflectiveTypeAdapterFactory.java:213)
    ... 14 more


-- System Details --
  Operating System: Windows 7 6.1.7601
  System Architecture: amd64
  Java Architecture: amd64
  Java Version: 1.8.0_351, Oracle Corporation
  Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
  JVM Max Memory: 1897922560
  JVM Total Memory: 128974848
  JVM Free Memory: 105156912

疑似启动器设置错误
你干什么了？

java8换这个版本 没用重新安装下游戏本体
java8-281 https://cowtransfer.com/s/3a3ca2d3d09243

更换网络环境后重试。启动器下载到了空的资源。