Thank you so much! That solved the issue!
However I still can't figure out how to upload multiple images at once. In my case, I wanted to upload images to a gallery website, where I want the user to select more than one image at a time. I guess you have to add something to the ActivityStarter to be able to do that. I'd appreciate if anyone could help me with this!
This is the block i'm currently using:
I researched a bit and found this, but don't know where to add...
