Nothing obvious jumps to mind. The underlying error appears to be:
java.lang.NoSuchMethodException: Unknown property ‘class’ on class ‘class org.openmrs.module.reporting.dataset.definition.CohortIndicatorDataSetDefinition’ org.apache.commons.beanutils.PropertyUtilsBean.getSimpleProperty(PropertyUtilsBean.java:1270) org.apache.commons.beanutils.PropertyUtilsBean.getNestedProperty(PropertyUtilsBean.java:809) org.apache.commons.beanutils.PropertyUtilsBean.getProperty(PropertyUtilsBean.java:885) org.apache.commons.beanutils.PropertyUtils.getProperty(PropertyUtils.java:464) org.openmrs.module.webservices.rest.web.resource.impl.BaseDelegatingResource.getProperty(BaseDelegatingResource.java:751) org.openmrs.module.webservices.rest.web.resource.impl.DelegatingResourceDescription$Property.evaluate(DelegatingResourceDescription.java:245) org.openmrs.module.webservices.rest.web.resource.impl.BaseDelegatingConverter.convertDelegateToRepresentation(BaseDelegatingConverter.java:143) org.openmrs.module.webservices.rest.web.resource.impl.BaseDelegatingResource.asRepresentation(BaseDelegatingResource.java:382) org.openmrs.module.webservices.rest.web.ConversionUtil.convertToRepresentation(ConversionUtil.java:405) org.openmrs.module.webservices.rest.web.ConversionUtil.convertToRepresentation(ConversionUtil.java:372) org.openmrs.module.webservices.rest.web.resource.impl.DelegatingResourceDescription$Property.evaluate(DelegatingResourceDescription.java:252) org.openmrs.module.webservices.rest.web.resource.impl.BaseDelegatingConverter.convertDelegateToRepresentation(BaseDelegatingConverter.java:143) org.openmrs.module.webservices.rest.web.resource.impl.BaseDelegatingResource.asRepresentation(BaseDelegatingResource.java:382) org.openmrs.module.webservices.rest.web.ConversionUtil.convertToRepresentation(ConversionUtil.java:405) org.openmrs.module.webservices.rest.web.ConversionUtil.convertToRepresentation(ConversionUtil.java:372) org.openmrs.module.webservices.rest.web.resource.impl.DelegatingResourceDescription$Property.evaluate(DelegatingResourceDescription.java:249) org.openmrs.module.webservices.rest.web.resource.impl.BaseDelegatingConverter.convertDelegateToRepresentation(BaseDelegatingConverter.java:143) org.openmrs.module.webservices.rest.web.resource.impl.BaseDelegatingResource.asRepresentation(BaseDelegatingResource.java:415) org.openmrs.module.reportingrest.web.resource.EvaluatedReportDefinitionResource.retrieve(EvaluatedReportDefinitionResource.java:80) org.openmrs.module.webservices.rest.web.v1_0.controller.MainResourceController.retrieve(MainResourceController.java:74) sun.reflect.GeneratedMethodAccessor3222.invoke(Unknown Source) sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
Someone probably needs to run this through the debugger and see what is going on within the web services module or reporting rest module.
Mike