Pinterest

I have tried this app 3 or 4 times now. I wish it would work, however it does not. The only thing that loads is a blank screen (if not this, it crashes). I have also tried to get it to load on multiple devices; on my phone (through Shopify's app > sales channels) I have gotten as far as the 'connect Pinterest account' page. Then it crashes or gives me a message that reads 'expected a valid shop query parameter'.