Lets-Encrypt not found #19

Hello! Thanks so much for making this.

Unfortunately, I've been getting this error whenever I try to run ./refresh_certs.sh:

Mon Oct 16 21:56:57 UTC 2017 Fetching certs...
/letsencrypt/fetch_certs.sh: line 23: /usr/local/bin/letsencrypt: No such file or directory

What's strange is that, if I go to /usr/local/bin and run ls, I get

kubectl  letsencrypt 

However, if I try run cd or cat on letsencrypt, I get the same No such file or directory error

Any help or advice would be really appreciated!