您好，我尝试部署到服务器时收到以下错误。我做错了什么。
weblogic.application.ModuleException:
at weblogic.servlet.internal.WebAppModule.startContexts(WebAppModule.java:1510)
at weblogic.servlet.internal.WebAppModule.start(WebAppModule.java:482)
at weblogic.application.internal.flow.ModuleStateDriver$3.next(ModuleStateDriver.java:425)
at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:52)
at weblogic.application.internal.flow.ModuleStateDriver.start(ModuleStateDriver.java:119)
Truncated. see log file for complete stacktrace
Caused By: java.lang.NullPointerException
at com.paetec.paonline.core.config.ProfitAssistantCoreConfig.ds3NorthMailbox(ProfitAssistantCoreConfig.java:80)
at com.paetec.paonline.core.config.ProfitAssistantCoreConfig$$EnhancerByCGLIB$$b4ed649d.CGLIB$ds3NorthMailbox$5(<generated>)
at com.paetec.paonline.core.config.ProfitAssistantCoreConfig$$EnhancerByCGLIB$$b4ed649d$$FastClassByCGLIB$$e15cdb49.invoke(<generated>)
at net.sf.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:228)
at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:280)
Truncated. see log file for complete stacktrace