Remote control with my domain

Hi HA community, First time posting!
I have problem with my Home Assistant remotely access. I’m running HA on my synology DS920+ using Docker, and I bought a domain on godaddy pointing to my static IP address, Using Let’s Encrypt certificate, and router forward all connection to my NAS.

here is my question:
I can only access my HA remotely using http, if using https my chrome just showing this:

How can I fix this problem using https access my HA remotely?
Thanks all!! and sorry for my poor English.

Try setting up in Synology revers proxy (application portal).
That will give you more flexibility in future and it’s really easy to do.