so my passenger side window started making noises a few weeks back, and last night i guess it lost its groove and just fell off its track, when i try rolling the window up..it basically stuck out pass my window visors instead of into its correct fitment..

if what im saying is still blurry please let me know and ill try to describe it better..but im asking for price range? is it an easy fix? can i take off the door panel myself?

..thanks, appreciated fellas in advance.