Then go there and download!The checksums are different. Official website:
Zorin OS 15.1 Ultimate 64-bit 6ee349d1a7f9854cbc802ecce4cb453aaf985d23a61ddf40b57ffb6932a373d9
63994DE61D3BC01C147CF188A4CA9FFE79B379F3325E6E028DF5614D1B3C3F3B
Torrent is working fine. 67 seeders, completed 500+ times. >>THE TORRENT DOES NOT WORK