PHP Fatal error: Uncaught TypeError: Unsupported operand types: string *

In einer Live-Installation habe ich folgende Fehlermeldung per E-Mail bekommen. Bis jetzt kommt das selten vor - das habe ich zum ersten Mal gesehen.

[13-May-2023 13:28:31 Europe/Berlin] PHP Fatal error:  Uncaught TypeError: Unsupported operand types: string * int in /.../packages/quiqqer/utils/src/QUI/Utils/Math.php:58
Stack trace:
#0 /.../packages/quiqqer/quiqqer/lib/QUI/Projects/Media.php(664): QUI\Utils\Math::resize()
#1 /.../packages/quiqqer/quiqqer/admin/ajax/media/replace.php(23): QUI\Projects\Media->replace()
#2 /.../packages/quiqqer/quiqqer/lib/QUI/Ajax.php(403): QUI\Upload\Manager->{closure}()
#3 /.../packages/quiqqer/quiqqer/lib/QUI/Upload/Manager.php(438): QUI\Ajax->callRequestFunction()
#4 /.../packages/quiqqer/quiqqer/lib/QUI/Upload/Manager.php(356): QUI\Upload\Manager->callFunction()
#5 /.../packages/quiqqer/quiqqer/lib/QUI/Upload/Manager.php(72): QUI\Upload\Manager->upload()
#6 /.../packages/quiqqer/quiqqer/lib/QUI/Upload/bin/upload.php(20): QUI\Upload\Manager->init()
#7 {main}
  thrown in /.../packages/quiqqer/utils/src/QUI/Utils/Math.php on line 58