Error starting Usage Statistics Module

[OKB]

Hello everyone.

I'm on 1.9.7 and am getting the following error when trying to start the Usage Statistics module:

WARN - ModuleUtil.refreshApplicationContext(824) |2014-01-16 12:21:39,820| Unable to invoke started() method on the module's activator

org.hibernate.NonUniqueResultException: query did not return a unique result: 2

at org.hibernate.impl.AbstractQueryImpl.uniqueElement(AbstractQueryImpl.java:899)

at org.hibernate.impl.CriteriaImpl.uniqueResult(CriteriaImpl.java:369)

at org.openmrs.scheduler.db.hibernate.HibernateSchedulerDAO.getTaskByName(HibernateSchedulerDAO.java:97)

at org.openmrs.scheduler.timer.TimerSchedulerServiceImpl.getTaskByName(TimerSchedulerServiceImpl.java:369)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.lang.reflect.Method.invoke(Method.java:606)

at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:309)

at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)

at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)

at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:110)

at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)

at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)

at com.sun.proxy.$Proxy257.getTaskByName(Unknown Source)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

Any idea on how to resolve this error?

Thanks!