12 Dodi Repack — Unarc.dll Error Code

The most frequent cause; one or more of the downloaded .bin files are incomplete or corrupted.

The "unarc.dll error code 12" usually occurs due to:

If even a single megabyte of data downloaded incorrectly or got corrupted, the heavy decompression will instantly fail with an unarc error. Open your torrent client (like qBittorrent).