Reader\PowerPoint97.php Argument #1 ($stream) must be of type int

[toto975]

$parser = new Parser();
[$pdf]
 = $parser->parseFile($fullPath);

Here is the error

PhpOffice\Common\Microsoft\OLERead::getStream(): Argument #1 ($stream) must be of type int, null given, called in \PhpPresentation\Reader\PowerPoint97.php on line 487

Here is the file (i renamed it .zip because .pps is not supported in the attach files feature of github)
test.pps.zip