XMLException in DOCX->TXT conversion

Caused by: org.apache.tika.exception.TikaException: Unexpected RuntimeException from org.apache.tika.parser.microsoft.ooxml.OOXMLParser@1de6e9d6
	at org.apache.tika.parser.CompositeParser.parse(CompositeParser.java:282)
	at org.apache.tika.parser.CompositeParser.parse(CompositeParser.java:280)
	... 16 more
Caused by: org.apache.poi.POIXMLException: org.apache.xmlbeans.XmlException: Element hdr@http://schemas.openxmlformats.org/wordprocessingml/2006/main is not a valid ftr@http://schemas.openxmlformats.org/wordprocessingml/2006/main document or a valid substitution.
	at org.apache.poi.xwpf.usermodel.XWPFFooter.onDocumentRead(XWPFFooter.java:121)
	at org.apache.poi.xwpf.usermodel.XWPFDocument.onDocumentRead(XWPFDocument.java:196)
	at org.apache.poi.POIXMLDocument.load(POIXMLDocument.java:190)
	at org.apache.poi.xwpf.usermodel.XWPFDocument.<init>(XWPFDocument.java:112)
	at org.apache.poi.xwpf.extractor.XWPFWordExtractor.<init>(XWPFWordExtractor.java:58)
	at org.apache.poi.extractor.ExtractorFactory.createExtractor(ExtractorFactory.java:232)
	at org.apache.tika.parser.microsoft.ooxml.OOXMLExtractorFactory.parse(OOXMLExtractorFactory.java:104)
	at org.apache.tika.parser.microsoft.ooxml.OOXMLParser.parse(OOXMLParser.java:106)
	at org.apache.tika.parser.CompositeParser.parse(CompositeParser.java:280)
	... 23 more
Caused by: org.apache.xmlbeans.XmlException: Element hdr@http://schemas.openxmlformats.org/wordprocessingml/2006/main is not a valid ftr@http://schemas.openxmlformats.org/wordprocessingml/2006/main document or a valid substitution.
	at org.apache.xmlbeans.impl.store.Locale.autoTypeDocument(Locale.java:322)
	at org.apache.xmlbeans.impl.store.Locale.parseToXmlObject(Locale.java:1384)
	at org.apache.xmlbeans.impl.store.Locale.parseToXmlObject(Locale.java:1363)
	at org.apache.xmlbeans.impl.schema.SchemaTypeLoaderBase.parse(SchemaTypeLoaderBase.java:370)
	at org.apache.poi.POIXMLTypeLoader.parse(POIXMLTypeLoader.java:144)
	at org.openxmlformats.schemas.wordprocessingml.x2006.main.FtrDocument$Factory.parse(Unknown Source)
	at org.apache.poi.xwpf.usermodel.XWPFFooter.onDocumentRead(XWPFFooter.java:96)