06:34:30 [SEVERE] Error occurred while enabling BetterShops v1.5.4 (Is it up to date?)
06:34:30 java.lang.NoClassDefFoundError: org/spigotmc/ProtocolInjector$PacketTitle
06:34:30 	at java.lang.Class.forName0(Native Method) ~[?:1.8.0_31]
06:34:30 	at java.lang.Class.forName(Unknown Source) ~[?:1.8.0_31]
06:34:30 	at me.moomaxie.BetterShops.Core.onEnable(Core.java:235) ~[?:?]
06:34:30 	at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:316) ~[JavaPlugin.class:git-Cauldron-MCPC-Plus-1.7.10-1.1307.06.218]
06:34:30 	at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:368) [JavaPluginLoader.class:git-Cauldron-MCPC-Plus-1.7.10-1.1307.06.218]
06:34:30 	at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:410) [SimplePluginManager.class:git-Cauldron-MCPC-Plus-1.7.10-1.1307.06.218]
06:34:30 	at org.bukkit.craftbukkit.v1_7_R4.CraftServer.loadPlugin(CraftServer.java:415) [CraftServer.class:git-Cauldron-MCPC-Plus-1.7.10-1.1307.06.218]
06:34:30 	at org.bukkit.craftbukkit.v1_7_R4.CraftServer.enablePlugins(CraftServer.java:349) [CraftServer.class:git-Cauldron-MCPC-Plus-1.7.10-1.1307.06.218]
06:34:30 	at net.minecraft.server.MinecraftServer.func_71243_i(MinecraftServer.java:500) [MinecraftServer.class:?]
06:34:30 	at net.minecraft.server.MinecraftServer.func_71222_d(MinecraftServer.java:474) [MinecraftServer.class:?]
06:34:30 	at net.minecraft.server.MinecraftServer.func_71247_a(MinecraftServer.java:434) [MinecraftServer.class:?]
06:34:30 	at net.minecraft.server.dedicated.DedicatedServer.func_71197_b(DedicatedServer.java:329) [lt.class:?]
06:34:30 	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:620) [MinecraftServer.class:?]
06:34:30 	at java.lang.Thread.run(Unknown Source) [?:1.8.0_31]