What caused this error and what can i do to fix it? Tekkit Server?

I have a dedicated tekkit server being hosted by Nitropanel. I have just gotten it and i've been able to run it. I noticed once i started up the server no mods were in the world. I deleted all the mods and i went in to.technic on my computer, and went into the mods. I copied those mods into my filezilla tekkit server mods folder, and restarted. This then spammed the console with this error:

2013-12-31 20:39:02 [SEVERE] at cpw.mods.fml.server.FMLBukkitHandler.onP…
2013-12-31 20:39:02 [SEVERE] at net.minecraft.server.MinecraftServer.ini…
2013-12-31 20:39:02 [SEVERE] at net.minecraft.server.MinecraftServer.run…
2013-12-31 20:39:02 [SEVERE] at net.minecraft.server.ThreadServerApplica…
2013-12-31 20:39:02 [SEVERE] Caused by: cpw.mods.fml.common.LoaderException: java.lang.NoClassDefFoundError: forge/IRenderWorldLastHandler
2013-12-31 20:39:02 [SEVERE] at cpw.mods.fml.common.Loader.loadModClass(…
2013-12-31 20:39:02 [SEVERE] at cpw.mods.fml.common.Loader.attemptFileLo…
2013-12-31 20:39:02 [SEVERE] at cpw.mods.fml.common.Loader.load(Loader.j…
2013-12-31 20:39:02 [SEVERE] … 5 more
2013-12-31 20:39:02 [SEVERE] Caused by: java.lang.NoClassDefFoundError: forge/IRenderWorldLastHandler
2013-12-31 20:39:02 [SEVERE] at java.lang.ClassLoader.defineClass1(Nativ… Method)
2013-12-31 20:39:02 [SEVERE] at java.lang.ClassLoader.defineClass(ClassL…
2013-12-31 20:39:02 [SEVERE] at java.security.SecureClassLoader.defineCl…
2013-12-31 20:39:02 [SEVERE] at java.net.URLClassLoader.defineClass(URLC…
2013-12-31 20:39:02 [SEVERE] at java.net.URLClassLoader.access$100(URLCl…
2013-12-31 20:39:02 [SEVERE] at java.net.URLClassLoader$1.run(URLClassLo…
2013-12-31 20:39:02 [SEVERE] at java.net.URLClassLoader$1.run(URLClassLo…
2013-12-31 20:39:02 [SEVERE] at java.security.AccessController.doPrivile… Method)
2013-12-31 20:39:02 [SEVERE] at java.net.URLClassLoader.findClass(URLCla…
2013-12-31 20:39:02 [SEVERE] at java.lang.ClassLoader.loadClass(ClassLoa…
2013-12-31 20:39:02 [SEVERE] at sun.misc.Launcher$AppClassLoader.loadCla…
2013-12-31 20:39:02 [SEVERE] at java.lang.ClassLoader.loadClass(ClassLoa…
2013-12-31 20:39:02 [SEVERE] at java.lang.ClassLoader.defineClass1(Nativ… Method)
2013-12-31 20:39:02 [SEVERE] at java.lang.ClassLoader.defineClass(ClassL…
2013-12-31 20:39:02 [SEVERE] at java.security.SecureClassLoader.defineCl…
2013-12-31 20:39:02 [SEVERE] at java.net.URLClassLoader.defineClass(URLC…
2013-12-31 20:39:02 [SEVERE] at java.net.URLClassLoader.access$100(URLCl…
2013-12-31 20:39:02 [SEVERE] at java.net.URLClassLoader$1.run(URLClassLo…
2013-12-31 20:39:02 [SEVERE] at java.net.URLClassLoader$1.run(URLClassLo…
2013-12-31 20:39:02 [SEVERE] at java.security.AccessController.doPrivile… Method)
2013-12-31 20:39:02 [SEVERE] at java.net.URLClassLoader.findClass(URLCla…
2013-12-31 20:39:02 [SEVERE] at java.lang.ClassLoader.loadClass(ClassLoa…
2013-12-31 20:39:02 [SEVERE] at sun.misc.Launcher$AppClassLoader.loadCla…
2013-12-31 20:39:02 [SEVERE] at java.lang.ClassLoader.loadClass(ClassLoa…
2013-12-31 20:39:02 [SEVERE] at java.lang.ClassLoader.loadClass(ClassLoa…
2013-12-31 20:39:02 [SEVERE] at java.lang.Class.forName0(Native Method)
2013-12-31 20:39:02 [SEVERE] at java.lang.Class.forName(Class.java:270)
2013-12-31 20:39:02 [SEVERE] at cpw.mods.fml.common.Loader.loadModClass(…
2013-12-31 20:39:02 [SEVERE] … 7 more
2013-12-31 20:39:02 [SEVERE] Caused by: java.lang.ClassNotFoundException: forge.IRenderWorldLastHandler
2013-12-31 20:39:02 [SEVERE] at java.net.URLClassLoader$1.run(URLClassLo…
2013-12-31 20:39:02 [SEVERE] at java.net.URLClassLoader$1.run(URLClassLo…
2013-12-31 20:39:02 [SEVERE] at java.security.AccessController.doPrivile… Method)
2013-12-31 20:39:02 [SEVERE] at java.net.URLClassLoader.findClass(URLCla…
2013-12-31 20:39:02 [SEVERE] at java.lang.ClassLoader.loadClass(ClassLoa…
2013-12-31 20:39:02 [SEVERE] at sun.misc.Launcher$AppClassLoader.loadCla…
2013-12-31 20:39:02 [SEVERE] at java.lang.ClassLoader.loadClass(ClassLoa…
2013-12-31 20:39:02 [SEVERE] … 35 more
2013-12-31 20:39:02 [SEVERE] Unexpected exception
cpw.mods.fml.common.LoaderException: cpw.mods.fml.common.LoaderException: java.lang.NoClassDefFoundError: forge/IRenderWorldLastHandler
at cpw.mods.fml.common.Loader.load(Loader.j…
at cpw.mods.fml.common.Loader.loadMods(Load…
at cpw.mods.fml.server.FMLBukkitHandler.onP…

2013-12-31 20:39:02 [SEVERE] Caused by: java.lang.ClassNotFoundException: forge.IRenderWorldLastHandler

java.lang.NoClassDefFoundError: forge/IRenderWorldLastHandler