[17:02:39 WARN]: [SX-Attribute] Task #325 for SX-Attribute v2.0.2 generated an exception
java.lang.NoClassDefFoundError: org/bukkit/attribute/Attribute
        at github.saukiya.sxattribute.data.attribute.sub.defence.HealthRegenAttribute$1.run(HealthRegenAttribute.java:41) ~[?:?]
        at org.bukkit.craftbukkit.v1_8_R3.scheduler.CraftTask.run(CraftTask.java:59) ~[PaperSpigot.jar:git-PaperSpigot-"4c7641d"]
        at org.bukkit.craftbukkit.v1_8_R3.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:352) [PaperSpigot.jar:git-PaperSpigot-"4c7641d"]
        at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:783) [PaperSpigot.jar:git-PaperSpigot-"4c7641d"]
        at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:378) [PaperSpigot.jar:git-PaperSpigot-"4c7641d"]
        at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:713) [PaperSpigot.jar:git-PaperSpigot-"4c7641d"]
        at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:616) [PaperSpigot.jar:git-PaperSpigot-"4c7641d"]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_202]
>

2021.12 数据，可能有更多内容

[17:02:39 WARN]: [SX-Attribute] Task #325 for SX-Attribute v2.0.2 generated an exception
java.lang.NoClassDefFoundError: org/bukkit/attribute/Attribute
  at github.saukiya.sxattribute.data.attribute.sub.defence.HealthRegenAttribute$1.run(HealthRegenAttribute.java:41) ~[?:?]
  at org.bukkit.craftbukkit.v1_8_R3.scheduler.CraftTask.run(CraftTask.java:59) ~[PaperSpigot.jar:git-PaperSpigot-"4c7641d"]
  at org.bukkit.craftbukkit.v1_8_R3.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:352) [PaperSpigot.jar:git-PaperSpigot-"4c7641d"]
  at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:783) [PaperSpigot.jar:git-PaperSpigot-"4c7641d"]
  at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:378) [PaperSpigot.jar:git-PaperSpigot-"4c7641d"]
  at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:713) [PaperSpigot.jar:git-PaperSpigot-"4c7641d"]
  at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:616) [PaperSpigot.jar:git-PaperSpigot-"4c7641d"]
  at java.lang.Thread.run(Unknown Source) [?:1.8.0_202]
>

1.8能用sx嘛？

不能用貌似他这里是找不到类
说明是版本不兼容

这是1.12.2的版本

你跟我说你服务器是1.12的？

我开的服我不知道版本？？？这就是1.12的但是似乎包括1.8.8

那你知道去吧

再见