could not locate file in lookup

[zouherenjie]

I ran with root on Ubuntu 20.04, choosing "12. Install to existing Ubuntu 18.04 or 20.04 server (for more advanced users)".
However, the installation fails

TASK [wireguard : Generate preshared keys] **************************************************************************************************************************************************
ok: [localhost] => (item=phone)
ok: [localhost] => (item=laptop)
ok: [localhost] => (item=desktop)
ok: [localhost] => (item=yoga14s)
ok: [localhost] => (item=zhuji)
ok: [localhost] => (item=43.133.0.244)
[WARNING]: Unable to find 'configs/43.133.0.244/wireguard//.pki//private/phone' in expected paths (use -vvvvv to see paths)

TASK [wireguard : Generate public keys] *****************************************************************************************************************************************************
fatal: [localhost]: FAILED! => {"msg": "An unhandled exception occurred while running the lookup plugin 'file'. Error was a <class 'ansible.errors.AnsibleError'>, original message: could not locate file in lookup: configs/43.133.0.244/wireguard//.pki//private/phone. could not locate file in lookup: configs/43.133.0.244/wireguard//.pki//private/phone"}

TASK [include_tasks] ************************************************************************************************************************************************************************
included: /app/algo/playbooks/rescue.yml for localhost

TASK [debug] ********************************************************************************************************************************************************************************
ok: [localhost] => {
"fail_hint": [
"Sorry, but something went wrong!",
"Please check the troubleshooting guide.",
"https://trailofbits.github.io/algo/troubleshooting.html"
]
}

TASK [Fail the installation] ****************************************************************************************************************************************************************
fatal: [localhost]: FAILED! => {"changed": false, "msg": "Failed as requested from task"}

PLAY RECAP **********************************************************************************************************************************************************************************
localhost : ok=69 changed=5 unreachable=0 failed=1 skipped=36 rescued=1 ignored=0
error_log.txt

[davidemyers]

Try removing these files and running ./algo again:

sudo rm -rf /etc/wireguard/*
rm -rf configs/*

[joebnc]

I have the exact same error, but removing the config files and re-run ./algo still gives the same error.
any idea or other options I can try?
thanks.