Error: Invalid argument

I was able to run the ./letsencrypt-auto with first domain: matchstix.io and www.matchstix.io. However, when I tried to run the script again for my second domain, I got the following error:

An unexpected error occurred. OSError: [Errno 22] Invalid argument: '/etc/letsencrypt/live/matchstix.io/cert.pem' Please see the logfiles in /var/log/letsencrypt for more details.