Debian 9 and easy script? Help? Not sure what is going on

This is what I get following this:
https://jwrober.github.io/erpnext_admin_guide/i-u-b/install.htmlhttps://jwrober.github.io/erpnext_admin_guide/i-u-b/install.html

It never installed erpnext although it went through all the steps. All I have is a frappe half-site after 5 attempts on Debian 9

Here is the error I get:

PLAY RECAP ********************************************************************************************************************
localhost : ok=75 changed=14 unreachable=0 failed=1

Passwords saved at ~/passwords.txt
Traceback (most recent call last):
File “install.py”, line 420, in
install_bench(args)
File “install.py”, line 122, in install_bench
run_playbook(‘site.yml’, sudo=True, extra_vars=extra_vars)
File “install.py”, line 338, in run_playbook
success = subprocess.check_call(args, cwd=os.path.join(cwd, ‘playbooks’))
File “/usr/lib/python2.7/subprocess.py”, line 186, in check_call
raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command ‘[‘ansible-playbook’, ‘-c’, ‘local’, ‘site.yml’, ‘-e’, ‘@/tmp/extra_vars.json’, ‘-vvvv’, ‘–become’, ‘–become-user=erpnext’]’ returned non-zero exit status 2