lxml.etree.XMLSyntaxError: Document is empty, line 1, column 1

[MinaGabriel]

I am getting this error any idea how to fix it, using Python 3.8.12

Traceback (most recent call last): File "en/candc2transccg.py", line 249, in <module> main() File "en/candc2transccg.py", line 224, in main xml_tree = etree.parse(args.xml_fname, parser) File "src/lxml/etree.pyx", line 3521, in lxml.etree.parse File "src/lxml/parser.pxi", line 1859, in lxml.etree._parseDocument File "src/lxml/parser.pxi", line 1885, in lxml.etree._parseDocumentFromURL File "src/lxml/parser.pxi", line 1789, in lxml.etree._parseDocFromFile File "src/lxml/parser.pxi", line 1177, in lxml.etree._BaseParser._parseDocFromFile File "src/lxml/parser.pxi", line 615, in lxml.etree._ParserContext._handleParseResultDoc File "src/lxml/parser.pxi", line 725, in lxml.etree._handleParseResult File "src/lxml/parser.pxi", line 654, in lxml.etree._raiseParseError File "sentences.candc.xml", line 1 lxml.etree.XMLSyntaxError: Document is empty, line 1, column 1