I recently downloaded and installed the Hatch Theme. I'm trying to perform something very simple and that is to change the custom header image. When I choose a file from my computer and click on upload, I get the following error message:
"Image could not be processed. Please go back and try again"
I have done the following:
1) Looked at the error and access log of my web server. There are no errors.
2) I have tried different types of images. It didn't help.
3) I have tried resizing my image to 640 x 360 pixels and that didn't help either.
Any suggestions would be greatly appreciated.