I got a similar message for another search, but this time it found the first 20 instances.
Maybe the previous one had less than 20. I had a case like this some months ago, and then it worked again (maybe after changing dump?).

Traceback (most recent call last):
File "C:\Program Files\Pywikipedia\pagegenerators.py", line 1255, in __iter__
    for page in self.wrapped_gen:
File "C:\Program Files\Pywikipedia\pagegenerators.py", line 1157, in Duplicate
FilterPageGenerator
    for page in generator:
File "replace.py", line 259, in __iter__
    for entry in self.parser:
File "C:\Program Files\Pywikipedia\xmlreader.py", line 313, in new_parse
    for event, elem in context:
File "<string>", line 68, in __iter__
SyntaxError: no element found: line 27487351, column 9
no element found: line 27487351, column 9
20 titles were saved.

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