So I get a call from the g/f- sunfoof is busted like described in title- motor works- wont shut-

is it the cable or tabs? - possibly the tracks need grease? she said it wont move but 2"- but it still moves, which I think is good- for now.
is the solution an easy fix or a grossly complicated money burning project?

opinions and advice please- tried search but no luck with this issue