I'm sorry but this app is really frustrating me because I cannot "save to album" so I can't upload videos to Instagram which is the MAIN reason why I purchased this app. Pleease help!!!

I'm sorry but this app is really frustrating me because I cannot "save to album" so I can't upload videos to Instagram which is the MAIN reason why I purchased this app. Pleease help!!!

It does not allow me to save to album and I payed the extra $2 that I didn't know it had to pay but still did and still says error!! How can I fix this??