corrupted files ?

[felipeleite5w]

Hi, i own a famous brazilian modded server and idk why I cant open my minecraft server anymore, i believe that some file got corrupted, can you help me??

this is the crsah

Time: 4/2/21 11:23 PM
Description: Exception in server tick loop

java.lang.NoClassDefFoundError: net/md_5/specialsource/transformer/MavenShade
at org.bukkit.craftbukkit.v1_7_R4.SpigotTimings.(SpigotTimings.java:43)
at org.bukkit.craftbukkit.v1_7_R4.scheduler.CraftTask.(CraftTask.java:50)
at org.bukkit.craftbukkit.v1_7_R4.scheduler.CraftTask.(CraftTask.java:54)
at org.bukkit.craftbukkit.v1_7_R4.scheduler.CraftTask.(CraftTask.java:29)
at org.bukkit.craftbukkit.v1_7_R4.scheduler.CraftScheduler.(CraftScheduler.java:51)
at org.bukkit.craftbukkit.v1_7_R4.CraftServer.(CraftServer.java:151)
at net.minecraft.server.management.ServerConfigurationManager.(ServerConfigurationManager.java:130)
at net.minecraft.server.dedicated.DedicatedPlayerList.(SourceFile:14)
at net.minecraft.server.dedicated.DedicatedServer.func_71197_b(DedicatedServer.java:235)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:643)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.ClassNotFoundException: net.md_5.specialsource.transformer.MavenShade
at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191)
at java.lang.ClassLoader.loadClass(ClassLoader.java:418)
at java.lang.ClassLoader.loadClass(ClassLoader.java:351)
... 11 more
Caused by: java.lang.ArrayIndexOutOfBoundsException: 66
at org.objectweb.asm.ClassReader.a(Unknown Source)
at org.objectweb.asm.ClassReader.readUTF8(Unknown Source)
at org.objectweb.asm.ClassReader.readClass(Unknown Source)
at org.objectweb.asm.ClassReader.a(Unknown Source)
at org.objectweb.asm.ClassReader.b(Unknown Source)
at org.objectweb.asm.ClassReader.accept(Unknown Source)
at org.objectweb.asm.ClassReader.accept(Unknown Source)
at cpw.mods.fml.common.asm.transformers.SideTransformer.transform(SideTransformer.java:43)
at net.minecraft.launchwrapper.LaunchClassLoader.runTransformers(LaunchClassLoader.java:279)
at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:176)
... 13 more