If you are attempting to remove an image background in Gamma, and you are receiving an error message, it is likely that the image isn't one that has been saved to your computer, but is instead being served as a URL by Gamma.
If you are attempting to remove the background on an image in Gamma, and you're receiving this error message, you'll need to save the image to your own computer, and then upload it to Gamma.
Here's how to do this:
Right click and open the image in a new tab
Download it to your computer using "Right click > save as"
Upload it to gamma as an uploaded image
Remove background
