SSL Error: ALERT_HANDSHAKE_FAILURE

Certificate:
    Data:
        Version: 3 (0x2)
        Serial Number:
            cc:7b:ca:da:1a:6a:af:19:56:15:5b:dc:07:a0:a6:1f
        Signature Algorithm: ecdsa-with-SHA384
        Issuer: O=SweetConnect GmbH, OU=IIoT, CN=SweetConnect InfluxDB CA prod-tp
        Validity
            Not Before: Aug 25 05:48:31 2021 GMT
            Not After : Aug 23 05:48:31 2031 GMT
        Subject: O=SweetConnect GmbH, OU=IIoT, CN=SweetConnect InfluxDB Server prod-tp
        Subject Public Key Info:
            Public Key Algorithm: id-ecPublicKey
                Public-Key: (384 bit)
                pub:
                    04:c8:2e:b6:5a:f2:86:f7:31:2a:b6:ac:20:66:85:
                    fe:6c:6f:82:29:12:b5:b8:e4:2d:f6:2c:d3:25:d6:
                    26:09:64:21:b7:ca:42:5c:2d:f1:19:b0:20:88:81:
                    20:41:8a:70:bf:e6:bd:e9:19:5e:6f:96:17:64:cc:
                    b0:79:de:fe:12:9c:e4:f0:0a:e5:e0:56:a6:0d:a2:
                    45:61:99:8f:58:b3:6c:39:cb:46:a3:7d:b6:0c:6e:
                    f0:e6:d5:8b:46:c8:26
                ASN1 OID: secp384r1
                NIST CURVE: P-384
        X509v3 extensions:
            X509v3 Key Usage: critical
                Digital Signature, Key Encipherment
            X509v3 Extended Key Usage: 
                TLS Web Server Authentication, TLS Web Client Authentication
            X509v3 Basic Constraints: critical
                CA:FALSE
            X509v3 Authority Key Identifier: 
                F9:4D:8D:E3:10:09:FD:B2:E8:CF:0D:62:70:39:9C:2E:C7:9D:D5:A6
            X509v3 Subject Alternative Name: 
                DNS:mqtt.tp.prod.machinedata.theegarten-pactec.de, DNS:mqtt.influx-tp.svc.cluster.local, DNS:localhost, IP Address:127.0.0.1
    Signature Algorithm: ecdsa-with-SHA384
    Signature Value:
        30:65:02:30:7b:f2:57:8e:7a:0b:58:76:a6:ad:b2:bf:56:57:
        a4:09:83:cd:48:3b:f9:6a:72:f2:c9:be:7b:23:13:c0:1a:92:
        f8:c4:07:5d:f8:fb:f0:fb:fb:8f:99:e3:0b:6e:80:15:02:31:
        00:bf:6a:39:29:ad:9c:ba:be:2e:24:15:a4:7f:cd:cb:fa:7c:
        40:05:8f:15:91:83:3d:86:80:5a:74:fd:d1:40:99:26:1b:0d:
        3e:68:30:2a:c9:1d:b8:9e:75:ae:c8:e7:6e