java.lang.IllegalStateException: Level number 20 is not recognized.

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    • java.lang.IllegalStateException: Level number 20 is not recognized. at org.slf4j.impl.Log4jLoggerAdapter.log(Log4jLoggerAdapter.java:421) at org.apache.commons.logging.impl.SLF4JLocationAwareLog.info(SLF4JLocationAwareLog.java:120) at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:189) at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:45) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4723) at org.apache.catalina.core.StandardContext$1.call(StandardContext.java:5226) at org.apache.catalina.core.StandardContext$1.call(StandardContext.java:5221) at java.util.concurrent.FutureTask.run(Unknown Source) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source)
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