@mandyrc said in Issue fetching email:

The project still in DEV mode because I cannot login as admin when I change to PROD. But for now I'm OK with this.

What error do you get when switching to prod and try to login?
Did you checked if some errors are present in server error log or developer console?

When you edit DEV to PROD do you clear also cache before login?
Are you sure to use the correct operator login link and not the customer login link?