Hi,
I have read your project and we can fix the issue with your webmin access. We need to access the SSH and check the firewall or logs to find the reason and fix it. We can start it right now and can be fixed in few minutes.
We are a team of server administrators having many years of experience in the field of Linux/Windows administration, Cloud Management Services etc.
Kindly accept our proposal and we can have a detailed discussion through chat. Hope to hear from you soon.
Best Regards