Minecraft PixelMon ERROR Unable to create Appender of type RandomAccessFile

Chaos ensued this Saturday morning when the kids couldn't login to our local Minecraft Pixelmon Server. Console log had thousand of error stack traces as below:

The key error was ERROR Unable to create Appender of type RandomAccessFile.

Solution: remove the logs folder from the root of working folder..

Yah!! Pixelmon Minecraft Server working again.

Happy Kids. Happy Dad.

[09:02:42] [main/INFO] [LaunchWrapper]: Using primary tweak class name net.minecraftforge.fml.common.launcher.FMLServerTweaker
2016-06-19 09:02:42,742 ERROR RandomAccessFileManager (logs/fml-junk-earlystartup.log) java.io.FileNotFoundException: logs\fml-junk-earlyst  
rtup.log (Access is denied)  
2016-06-19 09:02:42,747 ERROR Unable to invoke method createAppender in class org.apache.logging.log4j.core.appender.RandomAccessFileAppend  
r for element RandomAccessFile java.lang.reflect.InvocationTargetException  
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
        at java.lang.reflect.Method.invoke(Unknown Source)
        at org.apache.logging.log4j.core.config.BaseConfiguration.createPluginObject(BaseConfiguration.java:841)
        at org.apache.logging.log4j.core.config.BaseConfiguration.createConfiguration(BaseConfiguration.java:595)
        at org.apache.logging.log4j.core.appender.routing.RoutingAppender.createAppender(RoutingAppender.java:153)
        at org.apache.logging.log4j.core.appender.routing.RoutingAppender.getControl(RoutingAppender.java:137)
        at org.apache.logging.log4j.core.appender.routing.RoutingAppender.append(RoutingAppender.java:111)
        at org.apache.logging.log4j.core.config.AppenderControl.callAppender(AppenderControl.java:99)
        at org.apache.logging.log4j.core.config.LoggerConfig.callAppenders(LoggerConfig.java:425)
        at org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:406)
        at org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:367)
        at org.apache.logging.log4j.core.Logger.log(Logger.java:110)
        at org.apache.logging.log4j.spi.AbstractLogger.log(AbstractLogger.java:1417)
        at net.minecraft.launchwrapper.LogWrapper.log(LogWrapper.java:30)
        at net.minecraft.launchwrapper.Launch.launch(Launch.java:113)
        at net.minecraft.launchwrapper.Launch.main(Launch.java:28)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
        at java.lang.reflect.Method.invoke(Unknown Source)
        at net.minecraftforge.fml.relauncher.ServerLaunchWrapper.run(ServerLaunchWrapper.java:43)
        at net.minecraftforge.fml.relauncher.ServerLaunchWrapper.main(ServerLaunchWrapper.java:12)
Caused by: java.lang.IllegalStateException: Unable to create a manager  
        at org.apache.logging.log4j.core.appender.AbstractManager.getManager(AbstractManager.java:73)
        at org.apache.logging.log4j.core.appender.OutputStreamManager.getManager(OutputStreamManager.java:65)
        at org.apache.logging.log4j.core.appender.RandomAccessFileManager.getFileManager(RandomAccessFileManager.java:75)
        at org.apache.logging.log4j.core.appender.RandomAccessFileAppender.createAppender(RandomAccessFileAppender.java:151)
        ... 24 more

2016-06-19 09:02:42,841 ERROR Unable to create Appender of type RandomAccessFile