Safari won't open at all

I recently got my computer re-imaged. Everything was working fine on Yosemite until about an hour ago when my Wi-Fi abruptly disconnected. The AirPort icon gave me the spinning wheel of death, so I restarted my computer. The Wi-Fi issue disappeared upon restart, but Safari (which had been open as my default browser before the restart) now refuses to open. When I click on the app in my dock, applications folder, Launchpad, and anywhere else, it doesn't open. The icon doesn't bounce, and the app won't work even when I click on a link in an email or something. There's not even a crash log. Any fixes for this? I've restarted my computer several times, to no avail.