I’m creating node and gateway.Nearly finished but meet two problems.Could you find someone to help me to solve the problems? I am Very hungry!First is when I create database ,output is can’t create ,cmix is already exists. Second is NTP active still is NO,although I input the code according to the handbook.It would be great pleasure to have it being solved as quickly as possible!Thanks!https://media.discordapp.net/attachments/894004644945227776/894008327279886366/IMG_20211001_https://media.discordapp.net/attachments/894004644945227776/894011161471774720/20211003_080051.jpg
First problem is :input 
sudo -u postgres createuser --createdb --pwprompt cmix output:createuser: error: creation of new role failed: ERROR: role “cmix” already exists
The second is: System clock synchronized: yes NTP service avtive (do not have yes or no)
- It is always better to use the same locale (
C.UTF-8) as everyone else - The error simply says you already have a
cmixuser, so skip that step (or delete and create the user again) - NTP sync status should be
Yes
useful 
ok