at me.clip.placeholderapi.PlaceholderHook.onRequest(PlaceholderHook.java:38) ~[?:?]
        at me.clip.placeholderapi.PlaceholderAPI.setPlaceholders(PlaceholderAPI.java:257) ~[?:?]
        at me.clip.placeholderapi.PlaceholderAPI.setPlaceholders(PlaceholderAPI.java:220) ~[?:?]
        at me.clip.placeholderapi.PlaceholderAPI.setPlaceholders(PlaceholderAPI.java:427) ~[?:?]
        at \?.?.?.MiaoBoard.?ˊ.?(Replace.java:41) ~[?:?]
        at \?.?.?.MiaoBoard.?ˊ.?(Replace.java:35) ~[?:?]
        at \?.?.?.MiaoBoard.?ˊ.?(Replace.java:29) ~[?:?]
        at \?.?.?.MiaoBoard.??.onBodyUpdate(SelfListener.java:33) ~[?:?]
        at catserver.server.executor.asm.generated.GeneratedEventExecutor118.execute(Unknown Source) ~[?:?]
        at org.bukkit.plugin.EventExecutor$2.execute(EventExecutor.java:67) ~[EventExecutor$2.class:git-CatServerAsync-1.12.2-be22981]
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[RegisteredListener.class:git-CatServerAsync-1.12.2-be22981]
        at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:503) ~[SimplePluginManager.class:git-CatServerAsync-1.12.2-be22981]
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:485) ~[SimplePluginManager.class:git-CatServerAsync-1.12.2-be22981]
        at \?.?.?.MiaoBoard.??.?(SidebarBoard.java:43) ~[?:?]
        at org.bukkit.craftbukkit.v1_12_R1.scheduler.CraftTask.run(CraftTask.java:76) [CraftTask.class:git-CatServerAsync-1.12.2-be22981]
        at org.bukkit.craftbukkit.v1_12_R1.scheduler.CraftAsyncTask.run(CraftAsyncTask.java:52) [CraftAsyncTask.class:git-CatServerAsync-1.12.2-be22981]
        at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [?:1.8.0_251]
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [?:1.8.0_251]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_251]

尝试下删除miaoboard插件

升级一下MiaoBoard和PlaceholderAPI这两个插件

能提供下更完整的报错吗

升级MiaoBoard和Papi
如果已经是最新版了，尝试把Papi换成2.9.2或2.8.2
如果还不能解决问题，请上传MiaoBoard计分板的配置

删掉配置文件重新写就行了解决了

解决了，删除配置文件重新写