My WD is not recognized by Mac!

Just yesterday My WD elements portable 1tb external hardrive was working fine, But when I connected it to my computer today, the Mac doesnt even recognized that i plugged it in! The light s flashing so it’s pbviously reciving power, but I dont know whats wrong. Please help!

Have you tried changing the USB cable? And is the hard drive detected within your Mac’s Disk Utility application for diagnostics?