PowerPoint97.php fatal error - getStream(): Argument #1 ($stream) must be of type int, null given

[xm74]

One more issue found with the MS PowerPoint presentation.
Here is a test file to download and an error dump.

PHP Fatal error:  Uncaught TypeError: PhpOffice\Common\Microsoft\OLERead::getStream(): Argument #1 ($stream) must be of type int, null given, called in {hidden}/vendor/phpoffice/phppresentation/src/PhpPresentation/Reader/PowerPoint97.php on line 478 and defined in {hidden}/vendor/phpoffice/common/src/Common/Microsoft/OLERead.php:203
Stack trace:
#0 {hidden}/vendor/phpoffice/phppresentation/src/PhpPresentation/Reader/PowerPoint97.php(478): PhpOffice\Common\Microsoft\OLERead->getStream()
#1 {hidden}/vendor/phpoffice/phppresentation/src/PhpPresentation/Reader/PowerPoint97.php(451): PhpOffice\PhpPresentation\Reader\PowerPoint97->loadOLE()
#2 {hidden}/vendor/phpoffice/phppresentation/src/PhpPresentation/Reader/PowerPoint97.php(439): PhpOffice\PhpPresentation\Reader\PowerPoint97->loadFile()
#3 {hidden}/presidio.php(413): PhpOffice\PhpPresentation\Reader\PowerPoint97->load()
#4 {main}
  thrown in {hidden}/vendor/phpoffice/common/src/Common/Microsoft/OLERead.php on line 203

Fatal error: Uncaught TypeError: PhpOffice\Common\Microsoft\OLERead::getStream(): Argument #1 ($stream) must be of type int, null given, called in {hidden}/vendor/phpoffice/phppresentation/src/PhpPresentation/Reader/PowerPoint97.php on line 478 and defined in {hidden}/vendor/phpoffice/common/src/Common/Microsoft/OLERead.php:203
Stack trace:
#0 {hidden}/vendor/phpoffice/phppresentation/src/PhpPresentation/Reader/PowerPoint97.php(478): PhpOffice\Common\Microsoft\OLERead->getStream()
#1 {hidden}/vendor/phpoffice/phppresentation/src/PhpPresentation/Reader/PowerPoint97.php(451): PhpOffice\PhpPresentation\Reader\PowerPoint97->loadOLE()
#2 {hidden}/vendor/phpoffice/phppresentation/src/PhpPresentation/Reader/PowerPoint97.php(439): PhpOffice\PhpPresentation\Reader\PowerPoint97->loadFile()
#3 {hidden}/presidio.php(413): PhpOffice\PhpPresentation\Reader\PowerPoint97->load()
#4 {main}
  thrown in {hidden}/vendor/phpoffice/common/src/Common/Microsoft/OLERead.php on line 203