Throwing NullPointerException & ExceptionInInitializerError

java.lang.ExceptionInInitializerError
	at me.wodx.xclient.Client.initDiscord(Client.java:157)
	at me.wodx.xclient.Client.startClient(Client.java:130)
	at net.minecraft.client.Minecraft.startGame(Minecraft.java:562)
	at net.minecraft.client.Minecraft.run(Minecraft.java:426)
	at net.minecraft.client.main.Main.main(Main.java:113)
	at Start.main(Start.java:7)
Caused by: java.lang.NullPointerException
	at me.wodx.xclient.DiscordRPC.DiscordRPC.copyFile(DiscordRPC.java:204)
	at me.wodx.xclient.DiscordRPC.DiscordRPC.loadDLL(DiscordRPC.java:144)
	at me.wodx.xclient.DiscordRPC.DiscordRPC.<clinit>(DiscordRPC.java:16)
	... 6 more

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-- Head --
Stacktrace:
	at me.wodx.xclient.Client.initDiscord(Client.java:157)
	at me.wodx.xclient.Client.startClient(Client.java:130)
	at net.minecraft.client.Minecraft.startGame(Minecraft.java:562)

-- Initialization --
Details:
Stacktrace:
	at net.minecraft.client.Minecraft.run(Minecraft.java:426)
	at net.minecraft.client.main.Main.main(Main.java:113)
	at Start.main(Start.java:7)

Exception in thread "Thread-10" java.lang.NoClassDefFoundError: Could not initialize class me.wodx.xclient.DiscordRPC.DiscordRPC
	at me.wodx.xclient.Client.stopClient(Client.java:162)
	at java.lang.Thread.run(Thread.java:748)