Error regarding the code

[ShubhamNandi]

17:9 error Unexpected lexical declaration in case block no-case-declarations
22:23 error Each then() should return a value or throw promise/always-return
43:23 error Each then() should return a value or throw promise/always-return
66:23 error Each then() should return a value or throw promise/always-return

The above is the error i am facing please help!!!

[harshilanand39]

same error

[imtiaz142]

Error: functions predeploy error: Command terminated with non-zero exit code1
PS G:\ChatBot\using database in fullfillment\functions>

error