Created Screenshot from Display
What is the warning ?
This is not really a warning. It's just a message for you to confirm.
This is the message:
Created Screenshot from Display...
What went wrong?
Nothing went wrong. You pressed "F1" on the keyboard and created a screenshot from the display that your pointer is in.
The message also tells you where the screenshot is saved and what's it called.
How do I fix it?
Nothing to fix - just confirm it by pressing the OK button.