I'm wanting to try and use the upscale module to upscale a video from 1080p to 4k, but it keeps crashing. Whenever I try, it'll seem to be trying for a few minutes, but then I get the error message "After Effects can't continue: An output module stopped responding. The file may be damaged or corrupted." But this doesn't make any sense because I know the video (a 30 second clip) plays just fine.
You haven't told us much to help with troubleshooting. We'll need to know EXACT version number of AE (not "CC 2014", but actual 22.214.171.124-style version number), format of clip, codec of clip, and lots more!
As Szalam said, without proper system info, exact settings, version info and the crash log nobody can tell you much.