OSF SERVER

Hello, when i'm trying to run OSF server i do get the following error:

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Task class io.ruin.process.task.Task0$1 has either not been woven or the classpath is incorrect
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java.lang.Exception: Stack trace
    at java.lang.Thread.dumpStack(Thread.java:1336)
    at kilim.Task.errNotWoven(Task.java:266)
    at kilim.Task.execute(Task.java:443)
    at kilim.Task.run(Task.java:498)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
Task class io.ruin.process.task.Task0$1 has either not been woven or the classpath is incorrect
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java.lang.Exception: Stack trace
    at java.lang.Thread.dumpStack(Thread.java:1336)
    at kilim.Task.errNotWoven(Task.java:266)
    at kilim.Task.execute(Task.java:443)
    at kilim.Task.run(Task.java:498)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
	Process finished with exit code 0

can anyone help me with it, got stuck