FFmpeg error!

[medicogrammer]

Hello everyone! I'm a newbie and don't know anything about code, so please respond as ELI5 as possible :)
auto-editor has been working fine until now where it starts sending an FFmpeg error! after creating the new file. The new file it not playing as well. Here's the error message:

% auto-editor /Users/X/Desktop/filename4A.mp4
stderr: Input #0, rawvideo, from 'fd:':
  Duration: N/A, bitrate: 331776 kb/s
  Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 1280x720, 331776 kb/s, 30 tbr, 30 tbn
Stream mapping:
  Stream #0:0 -> #0:0 (rawvideo (native) -> h264 (h264_videotoolbox))
Output #0, mp4, to '/var/folders/gk/_q1gzt7j4lzfbckkv4shk0_w0000gn/T/tmps6o3s4gk/spedup0.mp4':
  Metadata:
    encoder         : Lavf60.4.101
  Stream #0:0: Video: h264 (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], q=2-31, 10000 kb/s, 30 fps, 15360 tbn
    Metadata:
      encoder         : Lavc60.9.100 h264_videotoolbox
frame=    0 fps=0.0 q=0.0 size=       0kB time=-577014:32:22.77 bitrate=  -0.0kb[mp4 @ 0x7ff4c38061c0] Starting second pass: moving the moov atom to the beginning of the file
frame=    0 fps=0.0 q=0.0 Lsize=       0kB time=-577014:32:22.77 bitrate=N/A speed=N/A
video:0kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown

Error! FFmpeg Error!

Please help! I'm cramming for finals and using this to skip dead noice and I can't have this going off on me now lol. I have no idea about python and have just been using the simple command auto-editor filename.mp4 and it was working alright so far.
Thank you so much for any help!

EDIT: It appears that the problem was due to lack of space. So sorry