[20:41:44] [Server thread/ERROR]: Could not pass event PlayerInteractEvent to Shop v1.4.8
org.bukkit.event.EventException
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:294) ~[spigot.jar:git-Spigot-1470]
	at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[spigot.jar:git-Spigot-1470]
	at org.bukkit.plugin.TimedRegisteredListener.callEvent(TimedRegisteredListener.java:30) ~[spigot.jar:git-Spigot-1470]
	at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:502) [spigot.jar:git-Spigot-1470]
	at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:487) [spigot.jar:git-Spigot-1470]
	at org.bukkit.craftbukkit.v1_7_R3.event.CraftEventFactory.callPlayerInteractEvent(CraftEventFactory.java:233) [spigot.jar:git-Spigot-1470]
	at net.minecraft.server.v1_7_R3.PlayerInteractManager.dig(PlayerInteractManager.java:103) [spigot.jar:git-Spigot-1470]
	at net.minecraft.server.v1_7_R3.PlayerConnection.a(PlayerConnection.java:549) [spigot.jar:git-Spigot-1470]
	at net.minecraft.server.v1_7_R3.PacketPlayInBlockDig.a(SourceFile:53) [spigot.jar:git-Spigot-1470]
	at net.minecraft.server.v1_7_R3.PacketPlayInBlockDig.handle(SourceFile:8) [spigot.jar:git-Spigot-1470]
	at net.minecraft.server.v1_7_R3.NetworkManager.a(NetworkManager.java:180) [spigot.jar:git-Spigot-1470]
	at net.minecraft.server.v1_7_R3.ServerConnection.c(ServerConnection.java:81) [spigot.jar:git-Spigot-1470]
	at net.minecraft.server.v1_7_R3.MinecraftServer.v(MinecraftServer.java:713) [spigot.jar:git-Spigot-1470]
	at net.minecraft.server.v1_7_R3.DedicatedServer.v(DedicatedServer.java:283) [spigot.jar:git-Spigot-1470]
	at net.minecraft.server.v1_7_R3.MinecraftServer.u(MinecraftServer.java:576) [spigot.jar:git-Spigot-1470]
	at net.minecraft.server.v1_7_R3.MinecraftServer.run(MinecraftServer.java:482) [spigot.jar:git-Spigot-1470]
	at net.minecraft.server.v1_7_R3.ThreadServerApplication.run(SourceFile:628) [spigot.jar:git-Spigot-1470]
Caused by: java.lang.NoSuchFieldError: getEntityManager
	at com.snowgears.shop.DisplayItem.spawn(DisplayItem.java:41) ~[?:?]
	at com.snowgears.shop.DisplayItem.<init>(DisplayItem.java:24) ~[?:?]
	at com.snowgears.shop.ShopObject.<init>(ShopObject.java:42) ~[?:?]
	at com.snowgears.shop.listeners.MiscListener.onPreShopSignClick(MiscListener.java:282) ~[?:?]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.7.0_25]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) ~[?:1.7.0_25]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.7.0_25]
	at java.lang.reflect.Method.invoke(Method.java:606) ~[?:1.7.0_25]
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:292) ~[spigot.jar:git-Spigot-1470]
	... 16 more