The provider worked fine before now it always shows me an error.

chain Name: operation Exception: OperationException Caught error: Failed to invoke operation Document.PageProvider Caused by: java.lang.ArrayIndexOutOfBoundsException: 1 Hierarchy calls

org.nuxeo.ecm.automation.core.operations.services.DocumentPageProviderOperation

at org.nuxeo.ecm.automation.core.impl.OperationServiceImpl.run(OperationServiceImpl.java:195)
at org.nuxeo.ecm.automation.core.impl.OperationServiceImpl.run(OperationServiceImpl.java:104)
at org.nuxeo.ecm.automation.seam.operations.RunOperationInSeam.runChain(RunOperationInSeam.java:90)
at org.nuxeo.ecm.automation.seam.operations.RunOperationInSeam.run(RunOperationInSeam.java:73)
at sun.reflect.GeneratedMethodAccessor1304.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.nuxeo.ecm.automation.core.impl.InvokableMethod.doInvoke(InvokableMethod.java:135)
at org.nuxeo.ecm.automation.core.impl.InvokableMethod.invoke(InvokableMethod.java:149)
at org.nuxeo.ecm.automation.core.impl.CompiledChainImpl.doInvoke(CompiledChainImpl.java:124)
at org.nuxeo.ecm.automation.core.impl.CompiledChainImpl.invoke(CompiledChainImpl.java:110)
at org.nuxeo.ecm.automation.core.impl.OperationServiceImpl.run(OperationServiceImpl.java:169)
... 83 more

Caused by: org.nuxeo.ecm.automation.OperationException: Failed to invoke operation Document.PageProvider

at org.nuxeo.ecm.automation.core.impl.InvokableMethod.invoke(InvokableMethod.java:157)
at org.nuxeo.ecm.automation.core.impl.CompiledChainImpl.doInvoke(CompiledChainImpl.java:124)
at org.nuxeo.ecm.automation.core.impl.CompiledChainImpl.invoke(CompiledChainImpl.java:110)
at org.nuxeo.ecm.automation.core.impl.OperationServiceImpl.run(OperationServiceImpl.java:169)
... 94 more

Caused by: java.lang.ArrayIndexOutOfBoundsException: 1

at org.nuxeo.ecm.platform.query.nxql.NXQLQueryBuilder.getQuery(NXQLQueryBuilder.java:213)
at org.nuxeo.ecm.platform.query.nxql.CoreQueryDocumentPageProvider.buildQuery(CoreQueryDocumentPageProvider.java:204)
at org.nuxeo.ecm.platform.query.nxql.CoreQueryDocumentPageProvider.getCurrentPage(CoreQueryDocumentPageProvider.java:91)
at org.nuxeo.ecm.automation.core.util.PaginablePageProvider.<init>(PaginablePageProvider.java:34)
at org.nuxeo.ecm.automation.jaxrs.io.documents.PaginableDocumentModelListImpl.<init>(PaginableDocumentModelListImpl.java:46)
at org.nuxeo.ecm.automation.core.operations.services.DocumentPageProviderOperation.run(DocumentPageProviderOperation.java:182)
at sun.reflect.GeneratedMethodAccessor1305.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.nuxeo.ecm.automation.core.impl.InvokableMethod.doInvoke(InvokableMethod.java:135)
at org.nuxeo.ecm.automation.core.impl.InvokableMethod.invoke(InvokableMethod.java:149)
... 97 more