How to fix the Fish shell error terminated by signal SIGKILL (Forced quit)

I was doing some work with my Fish shell when after a while I hit a problem.

I ran the command npx prisma migrate dev and I was met with this error:

fish: 'npx prisma migrate dev' terminated by signal SIGKILL (Forced quit)

What fixed the issue for me was simply closing the terminal and starting a new Fish shell.