I hosted my website on a VPS using Hostinger as provider. I added my backend and frontend using pm2 and I pointed the ip address to my domain that I bought from hostinger cloud hosting plan that has ssl certificate I installed the certificate. ut when I open my website it only opens as http and tells me not secure when i try to write it down as https it gives me ERR_SSL_PROTOCOL_ERROR. I just need some help so I can host my website with secure connection.

I tried re installing it again. and I tried to get path of certificate but it is not available on hostinger to get path
I access my domain through domain name:3000 so if anyone could help so I can get it secured