Without your code? We are guessing... But teh error is pretty explicit: you are trying to refer to a file directly using a relative path:
..\folder\file.jpg
But the current folder is already at the root of the drive (or root of the website for a web app) Try using an absolute path, or check your current folder is where you think it is!
Those who fail to learn history are doomed to repeat it. --- George Santayana (December 16, 1863 – September 26, 1952) Those who fail to clear history are doomed to explain it. --- OriginalGriff (February 24, 1959 – ∞)