My server crashed and i had save when the server crash on true but all pets were gone and when i summon pets to the players that have bought them the pets disappear if they tp anywhere even spawn and when i look in the pets.yml folder no pets are saved in there they all just disappear.

Can you provide more information?

All I got from that was that your server crashed (due to a reason which you haven't told me) and that pets weren't saved, without providing any extra information as to why this might have occurred. I'm not psychic and can't read minds ;).

I have no idea why it crashed so i can not provide that information since my server did not record that.

I can't solve it unless I have more information. A server doesn't just crash without notifying you of a problem.

okey i could fins this about the crash

java.io.UTFDataFormatException: malformed input around byte 21
at java.io.DataInputStream.readUTF(DataInputStream.java:656)
at java.io.DataInputStream.readUTF(DataInputStream.java:564)
at net.minecraft.server.v1_7_R1.NBTTagCompound.b(SourceFile:322)
at net.minecraft.server.v1_7_R1.NBTTagCompound.load(SourceFile:36)
at net.minecraft.server.v1_7_R1.NBTTagList.load(SourceFile:35)
at net.minecraft.server.v1_7_R1.NBTTagCompound.a(SourceFile:329)
at net.minecraft.server.v1_7_R1.NBTTagCompound.load(SourceFile:37)
at net.minecraft.server.v1_7_R1.NBTTagCompound.a(SourceFile:329)
at net.minecraft.server.v1_7_R1.NBTTagCompound.load(SourceFile:37)
at net.minecraft.server.v1_7_R1.NBTCompressedStreamTools.a(SourceFile:107)
at net.minecraft.server.v1_7_R1.NBTCompressedStreamTools.a(SourceFile:78)
at net.minecraft.server.v1_7_R1.ChunkRegionLoader.loadChunk(ChunkRegionLoader.java:84)
at org.bukkit.craftbukkit.v1_7_R1.chunkio.ChunkIOProvider.callStage1(ChunkIOProvider.java:19)
at org.bukkit.craftbukkit.v1_7_R1.chunkio.ChunkIOProvider.callStage1(ChunkIOProvider.java:13)
at org.bukkit.craftbukkit.v1_7_R1.util.AsynchronousExecutor$Task.init(AsynchronousExecutor.java:150)
at org.bukkit.craftbukkit.v1_7_R1.util.AsynchronousExecutor$Task.initAsync(AsynchronousExecutor.java:95)
at org.bukkit.craftbukkit.v1_7_R1.util.AsynchronousExecutor$Task.run(AsynchronousExecutor.java:85)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:744)

Are you sure this is even related to EchoPet? That stacktrace doesn't really relate to your problem.

I know this stacktrace says nothing about EchoPet becuase in the crash it reported literally nothing about Echopet also all plugins worked just fine after the crash except EchoPet and i used a error site to look for any peoblems on my server and it had nothing on EchoPet.

Could you please close this becuase it fixed itself :) sorry for the trouble :/