Problem to connect to WebSocketSecure with a domain let'sEncrypt certificate

[Fabick75]

Hi,
I've set an home server with Aria2 daemon behind an nginx with reverse proxying of /jsonrpc via 443 port. I've found online indications and this works perfectly with a web frontend like AriaNG .
But with your client, when i set the parameters to connect to /jsonrpc via 443 this spit out some errors and not connect.

I've tryed enabling ad not enabling the flag on "Enable TLS/SSL encryption" from interface.

First of all, if I set connection via wss (wss://:443/jsonrpc) this give two errors :

282: host if offline
284: java.security.cert.CertPathValidationException: trust anchor for certification path not found

If I try with HTTP (but this I know that don't work, because don't work neither with AriaNG) this give me a correct response from "Host online" and http test, but then starts an unauthenticated test request (but I've set an authentication token in my server) and spit out the error :

323: javax.net.ssl.SSLHandshakeException: java.security.cert.CertPathValidationException: trust anchor for certification path not found

there are changes to resolve this?