ReadyAPI org.apache.xmlbeans.impl.values.XmlValueOutOfRangeException: Invalid boolean value

I am getting below error frequently - can any one help here 

  ERROR: org.apache.xmlbeans.impl.values.XmlValueOutOfRangeException: Invalid boolean value 'M'
org.apache.xmlbeans.impl.values.XmlValueOutOfRangeException: Invalid boolean value 'M'
at org.apache.xmlbeans.impl.values.XmlObjectBase$ValueOutOfRangeValidationContext.invalid(XmlObjectBase.java:314)
at org.apache.xmlbeans.impl.values.JavaBooleanHolder.validateLexical(JavaBooleanHolder.java:48)
at org.apache.xmlbeans.impl.values.JavaBooleanHolder.set_text(JavaBooleanHolder.java:38)
at org.apache.xmlbeans.impl.values.XmlObjectBase.update_from_wscanon_text(XmlObjectBase.java:1166)
at org.apache.xmlbeans.impl.values.XmlObjectBase.check_dated(XmlObjectBase.java:1305)
at org.apache.xmlbeans.impl.values.JavaBooleanHolder.getBooleanValue(JavaBooleanHolder.java:57)
at com.eviware.soapui.impl.wsdl.teststeps.WsdlDataSourceTestStep.isShared(WsdlDataSourceTestStep.java:295)
at com.eviware.soapui.impl.wsdl.teststeps.WsdlDataSourceTestStep.a(WsdlDataSourceTestStep.java:689)
at com.eviware.soapui.impl.wsdl.teststeps.WsdlDataSourceTestStep.prepare(WsdlDataSourceTestStep.java:541)
at com.eviware.soapui.impl.wsdl.support.AbstractTestCaseRunner.internalRun(AbstractTestCaseRunner.java:158)
at com.eviware.soapui.impl.wsdl.support.AbstractTestCaseRunner.internalRun(AbstractTestCaseRunner.java:1)
at com.eviware.soapui.impl.wsdl.support.AbstractTestRunner.run(AbstractTestRunner.java:130)
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
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)