I'm getting 

Error while compiling: BotSpawn.cs(1247,26): error CS1501: No overload for method `SwitchOnOff' takes `2' arguments

and bots aren't spawning, anyone know the dev and can help? It's kinda urgent as its an integral part of the server and have been using them for a long time and alot of config and work has gone into it :(

Please contact the author of it. It isn't hosted here.

how and where?

A Google search would show you, otherwise we do not advertise it here, sorry.

Hi.
There is a update on BotSpawn. Delete old Plugin and Re-install updated one.