[v1.8.15] XMLSyntaxError - src\lxml\parser.pxi:654

OpenNumismat: 1.8.15
OS: Windows 10 (10.0.19044)
Python: 3.10.1 (64bit)
Qt: 5.15.6
Locale: en

Traceback (most recent call last):
File "OpenNumismat\Collection\Import\Ans.py", line 717, in preview
File "src\lxml\etree.pyx", line 3237, in lxml.etree.fromstring
File "src\lxml\parser.pxi", line 1896, in lxml.etree._parseMemoryDocument
File "src\lxml\parser.pxi", line 1784, in lxml.etree._parseDoc
File "src\lxml\parser.pxi", line 1141, in lxml.etree._BaseParser._parseDoc
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 "", line 1
lxml.etree.XMLSyntaxError: Document is empty, line 1, column 1