TLS Certificate is not trusted / The certificate is not trusted in all web browsers
The certificate is not signed by a trusted authority (checking against Mozilla’s root store). If you bought the certificate from a trusted authority, you probably just need to install one or more intermediate certificates. Contact your certificate provider for assistance doing this for your server platform.
Thanks for checking the issue
I opened the sub-domain for redirection and it’s attached with SSL from infinityfree.net. So I think if the SSL going to work then it will work for all not only for the proper domain also for sub-domains.