I'm not really sure what I've done wrong, but here's the crash report.

---- Minecraft Crash Report ----
// Shall we play a game?

Time: 21/02/17 10:04
Description: Exception in server tick loop

net.minecraftforge.fml.common.LoaderExceptionModCrash: Caught exception from Pixelmon (pixelmon)
Caused by: java.lang.NoClassDefFoundError: org/h2/util/IOUtils
at org.h2.util.Utils.loadResource(Utils.java:637)
at org.h2.util.Utils.getResource(Utils.java:609)
at org.h2.message.DbException.<clinit>(DbException.java:38)
at org.h2.engine.Database.openDatabase(Database.java:256)
at org.h2.engine.Database.<init>(Database.java:221)
at org.h2.engine.Engine.openSession(Engine.java:56)
at org.h2.engine.Engine.openSession(Engine.java:160)
at org.h2.engine.Engine.createSessionAndValidate(Engine.java:139)
at org.h2.engine.Engine.createSession(Engine.java:122)
at org.h2.engine.Engine.createSession(Engine.java:28)
at org.h2.engine.SessionRemote.connectEmbeddedOrServer(SessionRemote.java:313)
at org.h2.jdbc.JdbcConnection.<init>(JdbcConnection.java:105)
at org.h2.jdbc.JdbcConnection.<init>(JdbcConnection.java:90)
at org.h2.Driver.connect(Driver.java:73)
at java.sql.DriverManager.getConnection(Unknown Source)
at java.sql.DriverManager.getConnection(Unknown Source)
at com.pixelmonmod.pixelmon.database.DatabaseHelper.getConnection(DatabaseHelper.java:71)
at com.pixelmonmod.pixelmon.config.PixelmonItemsTMs.load(PixelmonItemsTMs.java:34)
at com.pixelmonmod.pixelmon.config.PixelmonItems.load(PixelmonItems.java:302)
at com.pixelmonmod.pixelmon.config.PixelmonConfig.loadConfig(PixelmonConfig.java:414)
at com.pixelmonmod.pixelmon.config.PixelmonConfig.init(PixelmonConfig.java:406)
at com.pixelmonmod.pixelmon.Pixelmon.preInit(Pixelmon.java:101)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at net.minecraftforge.fml.common.FMLModContainer.handleModStateEvent(FMLModContainer.java:616)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at com.google.common.eventbus.EventSubscriber.handleEvent(EventSubscriber.java:74)
at com.google.common.eventbus.SynchronizedEventSubscriber.handleEvent(SynchronizedEventSubscriber.java:47)
at com.google.common.eventbus.EventBus.dispatch(EventBus.java:322)
at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:304)
at com.google.common.eventbus.EventBus.post(EventBus.java:275)
at net.minecraftforge.fml.common.LoadController.sendEventToModContainer(LoadController.java:243)
at net.minecraftforge.fml.common.LoadController.propogateStateMessage(LoadController.java:221)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at com.google.common.eventbus.EventSubscriber.handleEvent(EventSubscriber.java:74)
at com.google.common.eventbus.SynchronizedEventSubscriber.handleEvent(SynchronizedEventSubscriber.java:47)
at com.google.common.eventbus.EventBus.dispatch(EventBus.java:322)
at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:304)
at com.google.common.eventbus.EventBus.post(EventBus.java:275)
at net.minecraftforge.fml.common.LoadController.distributeStateMessage(LoadController.java:145)
at net.minecraftforge.fml.common.Loader.preinitializeMods(Loader.java:624)
at net.minecraftforge.fml.server.FMLServerHandler.beginServerLoading(FMLServerHandler.java:99)
at net.minecraftforge.fml.common.FMLCommonHandler.onServerStart(FMLCommonHandler.java:328)
at net.minecraft.server.dedicated.DedicatedServer.func_71197_b(DedicatedServer.java:121)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:431)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.ClassNotFoundException: org.h2.util.IOUtils
at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
... 54 more
Caused by: java.lang.OutOfMemoryError: Java heap space


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- System Details --
Details:
Minecraft Version: 1.10.2
Operating System: Windows 7 (x86) version 6.1
Java Version: 1.8.0_66, Oracle Corporation
Java VM Version: Java HotSpot(TM) Client VM (mixed mode, sharing), Oracle Corporation
Memory: 1086464 bytes (1 MB) / 259522560 bytes (247 MB) up to 259522560 bytes (247 MB)
JVM Flags: 0 total;
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
FML: MCP 9.32 Powered by Forge 12.18.3.2221 5 mods loaded, 5 mods active
States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored
UCH mcp{9.19} [Minecraft Coder Pack] (minecraft.jar)
UCH FML{8.0.99.99} [Forge Mod Loader] (forge-1.10.2-12.18.3.2221-universal.jar)
UCH Forge{12.18.3.2221} [Minecraft Forge] (forge-1.10.2-12.18.3.2221-universal.jar)
UCH mercurius_updater{1.0} [mercurius_updater] (MercuriusUpdater-1.10.2.jar)
UCE pixelmon{5.0.0} [Pixelmon] (Pixelmon-1.10.2-5.0.0-universal.jar)
Loaded coremods (and transformers):
Profiler Position: N/A (disabled)
Is Modded: Definitely; Server brand changed to 'fml,forge'
Type: Dedicated Server (map_server.txt)