The crash error:

[11:21:48] [Server thread/ERROR]: Encountered an unexpected exception java.lang.UnsupportedOperationException at com.google.common.collect.ImmutableCollection.clear(ImmutableCollection.java:156) ~[minecraft_server.1.10.2.jar:?] at elec332.core.grid.v2.internal.GridEventInputHandler.tickEnd(GridEventInputHandler.java:113) ~[GridEventInputHandler.class:?] at elec332.core.grid.v2.internal.GridEventHandler.serverTick(GridEventHandler.java:49) ~[GridEventHandler.class:?] at net.minecraftforge.fml.common.eventhandler.ASMEventHandler_305_GridEventHandler_serverTick_ServerTickEvent.invoke(.dynamic) ~[?:?] at net.minecraftforge.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:90) ~[ASMEventHandler.class:?] at net.minecraftforge.fml.common.eventhandler.EventBus.post(EventBus.java:185) ~[EventBus.class:?] at net.minecraftforge.fml.common.FMLCommonHandler.onPostServerTick(FMLCommonHandler.java:261) ~[FMLCommonHandler.class:?] at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:657) ~[MinecraftServer.class:?] at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:471) [MinecraftServer.class:?] at java.lang.Thread.run(Thread.java:745) [?:1.8.0_72]

Full crash report: http://pastebin.com/Qpq7SgpT

Fixed in upcoming release

When will the next release uploaded?

He uploaded it almost immediately, Curse is just being slow for some reason. If you need it fast, go here:

https://minecraft.curseforge.com/projects/eleccore-rendering-library/files

THX 😄

Thanks! Fast answer!