Hestiacp doesnt have Phpmyadmin?

I do clean install hestiacp on ubuntu 18 using this command:

bash hst-install.sh -a yes -n yes -w no -o no -v no -j no -k no -m yes -g no -x no -z no -c no -t no -i yes -b yes -q no -d no -r 8083 -l en -y yes -force

it can’t open phpmyadmin when i click the button in admin menu.
my browser always says “unable to connect”

I tried this Can not open phpMyAdmin in Hestia CP 1.1.0

but it shows:
Error: Let’s Encrypt new auth status 400
Error: Let’s Encrypt SSL creation failed

Please check if you an access the default website

Are you using any systems like Cloudflare?

Solved on github: https://github.com/hestiacp/hestiacp/issues/825#issuecomment-632677990