Error: It seems that your server's hostname is not yet pointed to your server's IP address. Please update your DNS record by adding an A record and point it to your server IP

[ArtKazuma]

I try command sudo apt-get install git && git clone -q https://github.com/joglomedia/LEMPer.git && cd LEMPer && cp -f .env.dist .env && sudo ./lemper.sh --install

but i got error

Error: It seems that your server's hostname is not yet pointed to your server's IP address. Please update your DNS record by adding an A record and point it to your server IP x.x.x.x

i already add A record on cloudflare. but still same.

I using VPS on vultr.
OS ubuntu 18