Err: Class is not indexed interface
From the server log:
2018-09-25T09:30:37.770907745Z 09:30:37,770 qtp485815673-364 ERROR o.g.s.m.UserControllerAdvice:89 - Class is not indexed interface org.genesys2.server.model.json.Api1Constants$Accession on GET http://sandbox.genesys-pgr.org/explore/charts/data/country-collection-size
2018-09-25T09:30:37.770942665Z java.lang.RuntimeException: Class is not indexed interface org.genesys2.server.model.json.Api1Constants$Accession
2018-09-25T09:30:37.770952287Z at org.genesys2.server.service.impl.ElasticsearchServiceImpl.termStatistics(ElasticsearchServiceImpl.java:643)
2018-09-25T09:30:37.770958736Z at org.genesys2.server.service.impl.ElasticsearchServiceImpl.termStatisticsAuto(ElasticsearchServiceImpl.java:713)
2018-09-25T09:30:37.770964728Z at org.genesys2.server.service.impl.ElasticsearchServiceImpl.termStatisticsAuto(ElasticsearchServiceImpl.java:707)
2018-09-25T09:30:37.770984744Z at sun.reflect.GeneratedMethodAccessor1153.invoke(Unknown Source)
2018-09-25T09:30:37.770990979Z at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
2018-09-25T09:30:37.770996182Z at java.lang.reflect.Method.invoke(Method.java:498)
2018-09-25T09:30:37.771001051Z at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:333)
2018-09-25T09:30:37.771007089Z at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:190)
2018-09-25T09:30:37.771012936Z at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
2018-09-25T09:30:37.771018273Z at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:99)
2018-09-25T09:30:37.771023239Z at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:282)
2018-09-25T09:30:37.771028957Z at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96)
2018-09-25T09:30:37.771034562Z at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
2018-09-25T09:30:37.771039615Z at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:213)
2018-09-25T09:30:37.771044651Z at com.sun.proxy.$Proxy214.termStatisticsAuto(Unknown Source)
2018-09-25T09:30:37.771049851Z at org.genesys2.server.mvc.ChartsController.accessionsCollection(ChartsController.java:92)