Server Error ClassNotFoundException

[Falkner35]

Running a server on Forge 1.7.10 with a large custom modpack and I'm getting the following error

 

FML Crashlog:

http://pastebin.com/yGu41D2r

 

Minecraft Crashlog

http://pastebin.com/Yu589YhR

[Choonster]

Caused by: java.lang.NoClassDefFoundError: net/minecraft/client/multiplayer/WorldClient

...

    States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored

...

    UE  DynamicLights{1.3.8} [Dynamic Lights] (DynamicLights-1.7.10.jar)

    UE  DynamicLights_onFire{1.0.4} [Dynamic Lights Burning Entity Module] (DynamicLights-1.7.10.jar)

    UE  DynamicLights_creepers{1.0.4} [Dynamic Lights Creeper Module] (DynamicLights-1.7.10.jar)

    UE  DynamicLights_dropItems{1.0.8} [Dynamic Lights EntityItem Module] (DynamicLights-1.7.10.jar)

    UE  DynamicLights_entityClasses{1.0.1} [Dynamic Lights Entity Light Module] (DynamicLights-1.7.10.jar)

    UE  DynamicLights_mobEquipment{1.0.8} [Dynamic Lights Mob Equipment Light Module] (DynamicLights-1.7.10.jar)

    UE  DynamicLights_flameArrows{1.0.0} [Dynamic Lights Fiery Arrows Light Module] (DynamicLights-1.7.10.jar)

    UE  DynamicLights_floodLights{1.0.2} [Dynamic Lights Flood Light] (DynamicLights-1.7.10.jar)

    UE  DynamicLights_otherPlayers{1.0.8} [Dynamic Lights OtherPlayers Light Module] (DynamicLights-1.7.10.jar)

    UE  DynamicLights_thePlayer{1.1.4} [Dynamic Lights Player Light Module] (DynamicLights-1.7.10.jar)

 

As it says on the Minecraft Forum thread and the download page:

Note: DO NOT INSTALL THE COREMOD ON SERVERS! It will crash on load.