The error ERR_SSL_VERSION_OR_CIPHER_MISMATCH means your server is using old or unsupported SSL/TLS settings that the browser doesn’t accept.
It works without the folder because the main domain has correct SSL settings. But when you point to a folder, it might be using a different setup that doesn’t have proper SSL or is using an old version.
To fix this:
Make sure your server uses TLS 1.2 or 1.3, not old versions like SSLv3 or TLS 1.0.
Check that the SSL certificate is valid for both the main domain and the folder (or subdomain).
Use online tools like SSL Labs Test to find the issue.
If you're using Apache or Nginx, check your config files and make sure SSL is set up correctly for all paths.
