Error Message don't appear

I got my login page so I write a wrong user but the message don’t show up

any suggest I check on inspector there isn;t any error

Please don’t post images of code or templates here. Copy/paste the code (or template) into the body of your message between lines of three backtick - ` characters. This means you’ll have a line of ```, then your code (or template), then another line of ```.