Message Erreur

Bonjour, lors du lancement de mon serveur, j'ai 2 message d'erreur.
Le 1er ( qui a vu d'œil viens de Massivecore, mais je ne le comprend pas ). ( Ce message s'affiche lorsqu'un joueur rejoint le serveur ).


[17:34:02] [User Authenticator #1/INFO]: UUID of player lenoob is fa1f75b5-fc46-3211-ac87-8a53 f51291e5
[17:34:03] [Server thread/WARN]: java.lang.ClassNotFoundException: net/minecraft/server/v1_7_R 4/PlayerInventory
[17:34:03] [Server thread/WARN]: at java.lang.Class.forName0(Native Method)
[17:34:03] [Server thread/WARN]: at java.lang.Class.forName(Class.java:191)
[17:34:03] [Server thread/WARN]: at com.massivecraft.massivecore.particleeffect.Reflect ionUtils$PackageType.getClass(ReflectionUtils.java:414)
[17:34:03] [Server thread/WARN]: at com.massivecraft.massivecore.mixin.InventoryMixinDe fault.<clinit>(InventoryMixinDefault.java:35)
[17:34:03] [Server thread/WARN]: at com.massivecraft.massivecore.mixin.Mixin.<clinit>(M ixin.java:35)
[17:34:03] [Server thread/WARN]: at com.massivecraft.massivecore.util.IdUtil.playerLogi nLowest(IdUtil.java:388)
[17:34:03] [Server thread/WARN]: at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[17:34:03] [Server thread/WARN]: at sun.reflect.NativeMethodAccessorImpl.invoke(NativeM ethodAccessorImpl.java:57)
[17:34:03] [Server thread/WARN]: at sun.reflect.DelegatingMethodAccessorImpl.invoke(Del egatingMethodAccessorImpl.java:43)
[17:34:03] [Server thread/WARN]: at java.lang.reflect.Method.invoke(Method.java:606)
[17:34:03] [Server thread/WARN]: at org.bukkit.plugin.java.JavaPluginLoader$1.execute(J avaPluginLoader.java:334)
[17:34:03] [Server thread/WARN]: at org.bukkit.plugin.RegisteredListener.callEvent(Regi steredListener.java:62)
[17:34:03] [Server thread/WARN]: at org.bukkit.plugin.SimplePluginManager.fireEvent(Sim plePluginManager.java:507)
[17:34:03] [Server thread/WARN]: at org.bukkit.plugin.SimplePluginManager.callEvent(Sim plePluginManager.java:492)
[17:34:03] [Server thread/WARN]: at net.minecraft.server.management.ServerConfiguration Manager.attemptLogin(ServerConfigurationManager.java:565)
[17:34:03] [Server thread/WARN]: at net.minecraft.server.network.NetHandlerLoginServer. func_147326_c(NetHandlerLoginServer.java:130)
[17:34:03] [Server thread/WARN]: at net.minecraft.server.network.NetHandlerLoginServer. func_147233_a(NetHandlerLoginServer.java:70)
[17:34:03] [Server thread/WARN]: at net.minecraft.network.NetworkManager.func_74428_b(N etworkManager.java:247)
[17:34:03] [Server thread/WARN]: at net.minecraft.network.NetworkSystem.func_151269_c(N etworkSystem.java:173)
[17:34:03] [Server thread/WARN]: at net.minecraft.server.MinecraftServer.func_71190_q(M inecraftServer.java:980)
[17:34:03] [Server thread/WARN]: at net.minecraft.server.dedicated.DedicatedServer.func _71190_q(DedicatedServer.java:423)
[17:34:03] [Server thread/WARN]: at net.minecraft.server.MinecraftServer.func_71217_p(M inecraftServer.java:798)
[17:34:03] [Server thread/WARN]: at net.minecraft.server.MinecraftServer.run(MinecraftS erver.java:658)
[17:34:03] [Server thread/WARN]: at java.lang.Thread.run(Thread.java:745)




Le 2eme dont je ne comprend rien du tout :


[17:35:13] [Craft Scheduler Thread - 3/WARN]: java.io.IOException: Server returned HTTP respon se code: 504 for URL: https://api.curseforge.com/servermods/files?projectIds=45520
[17:35:13] [Craft Scheduler Thread - 3/WARN]: at sun.net.www.protocol.http.HttpURLConnection .getInputStream(HttpURLConnection.java:1627)
[17:35:13] [Craft Scheduler Thread - 3/WARN]: at sun.net.www.protocol.https.HttpsURLConnecti onImpl.getInputStream(HttpsURLConnectionImpl.java:254)
[17:35:13] [Craft Scheduler Thread - 3/WARN]: at com.koletar.jj.mineresetlite.MineResetLite. checkUpdates(MineResetLite.java:161)
[17:35:13] [Craft Scheduler Thread - 3/WARN]: at com.koletar.jj.mineresetlite.MineResetLite. access$300(MineResetLite.java:48)
[17:35:13] [Craft Scheduler Thread - 3/WARN]: at com.koletar.jj.mineresetlite.MineResetLite$ 2.run(MineResetLite.java:148)
[17:35:13] [Craft Scheduler Thread - 3/WARN]: at org.bukkit.craftbukkit.v1_7_R4.scheduler.Cr aftTask.run(CraftTask.java:71)
[17:35:13] [Craft Scheduler Thread - 3/WARN]: at org.bukkit.craftbukkit.v1_7_R4.scheduler.Cr aftAsyncTask.run(CraftAsyncTask.java:53)
[17:35:13] [Craft Scheduler Thread - 3/WARN]: at java.util.concurrent.ThreadPoolExecutor.run Worker(ThreadPoolExecutor.java:1145)
[17:35:13] [Craft Scheduler Thread - 3/WARN]: at java.util.concurrent.ThreadPoolExecutor$Wor ker.run(ThreadPoolExecutor.java:615)
[17:35:13] [Craft Scheduler Thread - 3/WARN]: at java.lang.Thread.run(Thread.java:745)
[17:36:49] [User Authenticator #2/INFO]: UUID of player Skorako is cc3f44f9-705a-396d-82fb-7c1 6fa058c9b






Petite info : J'ai un serveur Cauldron 1.7.10