[CACHE_FOLDER]_plugins\flipbook\www_resource-flipbook[FILENAME]

instead of

[CACHE_FOLDER]*www*_plugins\flipbook\www_resource-flipbook[FILENAME]

and

[CACHE_FOLDER]_plugins\flipbook%5Cwww%5Cresources%5CCommande%20Raspberry%20Pi.pdf\pages

instead of

[CACHE_FOLDER]_plugins\flipbook\www\resources\Commande%20Raspberry%20Pi.pdf\pages