after effects can't continue, after effects has crashed, (0:42)

ok, so i have a massive project for my school's graduation, wokred on it for over 100 hours, when it was done handed it in to the school. and moved all my files for that project onto a portable hard drive. now i need to change some parts of the video as a second assignment, and it will be shown at my school's graduation. but when i load the project, i have to reload all the footage in the library since it was all moved, whenever i do this, i get the error - after effects can't continue, after effects has crashed, (0:42)

sometimes, it doesnt even say the error and just immediately says "after effects has crashed, windows is attempting to find a solutio to the problem" whenever i try reloading the footage.

this isnt the only project that stuffs up - for the whole movie i have about 3-4 projects and whenever i try load footage i get those errors, but on one of the projects i also get this before it pops the 0:42 error message
"After Effects Error - Crash in progress. last logged message was:
<21576><2> rect t:0.000000 I:0.000000 w:0.000000 h:-73.000000

this is when i reload footage in the library aswell.

any help would be VERY GREATLY appreciated heaps, i have already tried moving the source files back onto my computer off the portable hard drive, re-installing AE, deleting the after effects 9.0 folder in appdata, and right about now i'm pretty lost.