Ubuntu19.04 not switch to root after unloading fish

After unloading fish, when you use sudo su - or su - when, being given "su: / usr / bin / fish no such directory or file"

Solution
$ CAT / etc / passwd
root❌0: 0: root: / root: / the User / bin / FISH (remove this line)
daemon❌1: 1: daemon: / usr / sbin: / usr / sbin / nologin
. .....