[JSONAPI] - Pas de dossier !

Bonjour, j'ai récemment installé le plugin JSONAPI et lors du redémarrage de mon serveur, aucun dossier n'est créer, pourriez vous m'expliquer comment remédier a ce problème ou le résoudre ?

Je vous remercie d'avance.

Logs :

[15:23:14] [Server thread/ERROR]: Could not load 'plugins/JSONAPI-5.5.1-mc1.7.2-R0.3-SNAPSHOT.jar' in folder 'plugins'
org.bukkit.plugin.UnknownDependencyException: ProtocolLib
at org.bukkit.plugin.SimplePluginManager.loadPlugins( SimplePluginManager.java:201) [minecraft_server.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
at org.bukkit.craftbukkit.v1_7_R1.CraftServer.loadPlu gins(CraftServer.java:350) [minecraft_server.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
at org.bukkit.craftbukkit.v1_7_R1.CraftServer.<init>( CraftServer.java:312) [minecraft_server.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
at net.minecraft.server.v1_7_R1.PlayerList.<init>(Pla yerList.java:63) [minecraft_server.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
at net.minecraft.server.v1_7_R1.DedicatedPlayerList.< init>(SourceFile:14) [minecraft_server.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
at net.minecraft.server.v1_7_R1.DedicatedServer.init( DedicatedServer.java:126) [minecraft_server.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
at net.minecraft.server.v1_7_R1.MinecraftServer.run(M inecraftServer.java:424) [minecraft_server.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
at net.minecraft.server.v1_7_R1.ThreadServerApplicati on.run(SourceFile:617) [minecraft_server.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
[15:23:14] [Server thread/ERROR]: ebean.properties not found