My Anki deck won't play sound

I had to reinstall Anki and ever since then only some of the sounds play. My mac also has a problem installing the app. It always is verifying and it brings up the installation driver every time I open it. When I try to get rid of the driver, it won’t close. Does anyone know how to fix these two problems?

After opening the .dmg file, please drag the Anki icon into your applications folder. Then use the menu at the top to eject the .dmg file, and remove it. If you can’t close it and Anki is not opening, restarting your computer may help.

For the audio, please see Sound/image media files have gone missing! - Frequently Asked Questions