Force to purge document

[BitON Consultores]

Hi
I have a node in error state and I don't know why.

I had problems with IN_TREE queries with that node and I saw error quecking
document by DBID

Q : /solr4/alfresco/select?q=DBID%3A5924+&wt=json&indent=true
R: response":{"numFound":1,"start":0,"docs":[      {
        "id":"ERROR-5924",
        "_version_":0,
        "DBID":5924}]
  },
  "processedDenies":false}

I have tried some commands :PURGE,REINDEX,... but always I obtain same
reuslt

Q: /solr4/admin/cores?action=REINDEX&nodeid=5924
R: <response>
              <lst name="responseHeader">
                     <int name="status">0</int>
                     <int name="QTime">1</int>
              </lst>
       </response>


How can I know what error the node has?
How can I force a reindexing of the node?
Thanks