Connect() failed while connecting to upstream

Hi

I was starting to see these errors in my log as my page start to gain more traction. Anyone know why ?
I have not changed the default hestia Nginx Configuration

2023/01/06 13:32:21 [error] 146434#146434: *6435575 peer closed connection in SSL handshake (104: Connection reset by peer) while SSL handshaking to upstream, client: 114.119.137.220, server: sptfy.com, request: “GET /error.php?e= HTTP/1.1”, upstream: “https://10.0.0.96:8443/error.php?e=”, host: “mysite.com

2023/01/06 13:42:09 [error] 148131#148131: *6435591 connect() failed (111: Connection refused) while connecting to upstream, client: 66.249.64.126, server: mysite.com, request: “GET /9xCI HTTP/1.1”, upstream: “https://10.0.0.96:8443/9xCI”, host: “mysite.com

2023/01/06 13:42:09 [error] 148131#148131: *6438529 connect() failed (111: Connection refused) while connecting to upstream, client: 149.108.213.33, server: mysite.com, request: “GET /MDlp~q HTTP/2.0”, upstream: “https://10.0.0.96:8443/MDlp~q”, host: “mysite.com”, referrer: “https://site.com/index.php?u=1590987&success=1

Probally the files doesn’t exists save to ignore …