HELP! G-Drive not showing in disk utility after software crash

Hey guys, I have a 2TB G-Drive Mobile USB-C external hard drive. Today, whilst saving to the drive, Photoshop crashed and must have ejected the disk. Now, although it audibly starts up, the hard drive won’t mount or show up at all in Disk Utility. In fact, Disk Utility often crashes when the drive is plugged in. After a NVRAM reset, I was prompted for the encryption password (which usually is saved in Keychain so not required), but then it still fails to mount. Any ideas if/how I can bring this back to life? Thanks in advance!