[20:43:26] [Server thread/ERROR] [minecraft/MinecraftServer]: Encountered an unexpected exception
net.minecraftforge.fml.common.LoaderExceptionModCrash: Caught exception from Open Terrain Generator (openterraingenerator)

Caused by: java.lang.RuntimeException: OTG has detected that you are loading an OTG world that has been used without OTG installed. OTG has fixed and saved the world data, you can now restart the game and enter the world.
        at com.pg85.otg.forge.OTGPlugin.serverLoad(OTGPlugin.java:212) ~[OTGPlugin.class:?]
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_221]
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_221]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_221]
        at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_221]
        at net.minecraftforge.fml.common.FMLModContainer.handleModStateEvent(FMLModContainer.java:637) ~[forge.jar:?]
        at sun.reflect.GeneratedMethodAccessor9.invoke(Unknown Source) ~[?:?]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_221]
        at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_221]
        at com.google.common.eventbus.Subscriber.invokeSubscriberMethod(Subscriber.java:91) ~[minecraft_server.1.12.2.jar:?]
        at com.google.common.eventbus.Subscriber$SynchronizedSubscriber.invokeSubscriberMethod(Subscriber.java:150) ~[minecraft_server.1.12.2.jar:?]
        at com.google.common.eventbus.Subscriber$1.run(Subscriber.java:76) ~[minecraft_server.1.12.2.jar:?]
        at com.google.common.util.concurrent.MoreExecutors$DirectExecutor.execute(MoreExecutors.java:399) ~[minecraft_server.1.12.2.jar:?]
        at com.google.common.eventbus.Subscriber.dispatchEvent(Subscriber.java:71) ~[minecraft_server.1.12.2.jar:?]
        at com.google.common.eventbus.Dispatcher$PerThreadQueuedDispatcher.dispatch(Dispatcher.java:116) ~[minecraft_server.1.12.2.jar:?]
        at com.google.common.eventbus.EventBus.post(EventBus.java:217) ~[minecraft_server.1.12.2.jar:?]
        at net.minecraftforge.fml.common.LoadController.sendEventToModContainer(LoadController.java:219) ~[forge.jar:?]
        at net.minecraftforge.fml.common.LoadController.propogateStateMessage(LoadController.java:197) ~[forge.jar:?]
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_221]
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_221]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_221]
        at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_221]
        at com.google.common.eventbus.Subscriber.invokeSubscriberMethod(Subscriber.java:91) ~[minecraft_server.1.12.2.jar:?]
        at com.google.common.eventbus.Subscriber$SynchronizedSubscriber.invokeSubscriberMethod(Subscriber.java:150) ~[minecraft_server.1.12.2.jar:?]
        at com.google.common.eventbus.Subscriber$1.run(Subscriber.java:76) ~[minecraft_server.1.12.2.jar:?]
        at com.google.common.util.concurrent.MoreExecutors$DirectExecutor.execute(MoreExecutors.java:399) ~[minecraft_server.1.12.2.jar:?]
        at com.google.common.eventbus.Subscriber.dispatchEvent(Subscriber.java:71) ~[minecraft_server.1.12.2.jar:?]
        at com.google.common.eventbus.Dispatcher$PerThreadQueuedDispatcher.dispatch(Dispatcher.java:116) ~[minecraft_server.1.12.2.jar:?]
        at com.google.common.eventbus.EventBus.post(EventBus.java:217) ~[minecraft_server.1.12.2.jar:?]
        at net.minecraftforge.fml.common.LoadController.distributeStateMessage(LoadController.java:136) ~[LoadController.class:?]
        at net.minecraftforge.fml.common.Loader.serverStarting(Loader.java:792) ~[Loader.class:?]
        at net.minecraftforge.fml.common.FMLCommonHandler.handleServerStarting(FMLCommonHandler.java:297) ~[FMLCommonHandler.class:?]
        at net.minecraft.server.dedicated.DedicatedServer.func_71197_b(DedicatedServer.java:307) ~[nz.class:?]
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:486) [MinecraftServer.class:?]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_221]
[20:43:26] [Server thread/ERROR] [minecraft/MinecraftServer]: This crash report has been saved to: C:\Users\Admin\Desktop\Server Minecraft\.\crash-reports\crash-2019-08-25_20.43.26-server.txt