SSL Error: ALERT_BAD_CERTIFICATE

Certificate:
    Data:
        Version: 3 (0x2)
        Serial Number: 7990313059534010353 (0x6ee34b64a5b077f1)
        Signature Algorithm: ecdsa-with-SHA256
        Issuer: C=DE, O=VWI_GTV, CN=GTV_VWG_MQTT_TS_CA_001
        Validity
            Not Before: Feb  9 11:54:00 2024 GMT
            Not After : Jan  7 23:59:00 2031 GMT
        Subject: C=DE, O=VWIF, CN=mqtt-ocu4.c6ghekftbmh2b3dv.germanywestcentral.azurecontainer.io
        Subject Public Key Info:
            Public Key Algorithm: id-ecPublicKey
                Public-Key: (256 bit)
                pub:
                    04:e3:ce:24:91:0d:8e:30:7b:0b:a2:92:39:9d:1b:
                    23:63:a0:6a:b6:85:27:17:e4:e5:23:9f:df:29:9c:
                    5c:92:38:ba:b5:a1:d2:fb:c0:f6:2c:7b:20:cb:47:
                    dd:dc:49:d3:8d:c1:cf:ab:39:85:9a:10:dc:78:20:
                    0a:ea:55:64:5a
                ASN1 OID: prime256v1
                NIST CURVE: P-256
        X509v3 extensions:
            X509v3 Basic Constraints: 
                CA:FALSE
            X509v3 Subject Key Identifier: 
                29:B2:98:23:3E:28:64:49:98:A2:5C:B3:5B:CB:33:25:F3:9B:BE:2D
            X509v3 Authority Key Identifier: 
                55:D1:DF:C9:A4:94:B2:FE:CE:E0:29:FA:6D:97:18:C8:85:7B:5B:23
            X509v3 Issuer Alternative Name: 
                DNS:mqtt-ocu4.c6ghekftbmh2b3dv.germanywestcentral.azurecontainer.io
            X509v3 CRL Distribution Points: 
                Full Name:
                  URI:http://crl.flyingberta.de/GTV_VWG_MQTT_TS_CA_001.crl
            Authority Information Access: 
                OCSP - URI:http://ocsp.flyingberta.de/
    Signature Algorithm: ecdsa-with-SHA256
    Signature Value:
        30:46:02:21:00:ad:f1:02:a5:5f:a9:cc:85:d7:51:c1:43:91:
        24:6f:ee:ef:d3:47:bb:e2:65:1c:53:31:07:83:02:f6:ae:da:
        bf:02:21:00:ca:00:97:a6:cc:1c:14:0f:45:18:90:80:03:47:
        a2:11:8f:77:52:41:a1:e7:2b:2e:a1:d2:75:ac:65:df:95:01