Handled exception during file upload

What does this MR do?

Handles exception during file upload - replaces the stack trace with a small error message.

Please see original MR for discussion with reviewer

What are the relevant issue numbers?

Closes #6699 - Stack trace of error from uploading image for object storage spews into screen

Does this MR meet the acceptance criteria?

• Changelog entry added, if necessary
• Tests added for this feature/bug
• Conforms to the code review guidelines
• Conforms to the merge request performance guidelines
• Conforms to the style guides