Watermark+ Photo Video funktioniert nicht

Full-screen watermark supported! *Add text watermark - Multiple fonts and colors available for you! *Add signature watermark - Quickly create one and you don’t need to add it over and over.  Just select one from history. *Add Image watermark - Import your trademark from your Photos. *Add full-screen watermark - Protect your photos better.  Subscription terms: Payment will be charged through the iTunes Account when the purchase is confirmed, and the subscription will be automatically renewed within 24 hours before the end of the current period unless auto-renewal is turned off at least 24 hours before the end of the current period.  Premium Feature： Batch watermarking photo without limits, Watermark Video, add full-screen watermark, and remove ads.  Protect your photos and videos while building your brand with a watermark you like.  You can add unique text, signature, image, and your logo to one or multi photos videos easily.  You can manage subscriptions and turn off auto-renewal in iTunes account settings after purchase.