Mac disk image corrupted- can't install program

Hi, I am a new user and tried downloading the newest Mac disk image but when I try to open it I get a warning that it is corrupted. What should I do? Use the older version? Thanks

If you’ve confirmed you’re using macOS 10.13 or later, then the download should work, and it might be worth trying to download it again. If you’re on an old macOS version, you may not be able to use anything after Anki 2.1.35-alternate.