LMIC with MSP432P401R : TX fail error

Hello, I am using an MSP432401R with a lora shield that enables me to send data to my server. However, I am having problems with the downlink. The uplink works fine but when it tries to send back to my end node, I get TXFAIL. Here are the logs from my end node as well as from lora server

indent preformatted text by 4 spaces    [
{
    "downlinkMetaData": {
        "txInfo": {
            "mac": "c0ee40ffff294325",
            "immediately": false,
            "timeSinceGPSEpoch": "",
            "timestamp": 1628874620,
            "frequency": 924500000,
            "power": 20,
            "dataRate": {
                "modulation": "LORA",
                "bandwidth": 500,
                "spreadFactor": 10,
                "bitrate": 0
            },
            "codeRate": "4/5",
            "iPol": true,
            "board": 0,
            "antenna": 0
        }
    },
    "phyPayload": {
        "mhdr": {
            "mType": "UnconfirmedDataDown",
            "major": "LoRaWANR1"
        },
        "macPayload": {
            "fhdr": {
                "devAddr": "0158c240",
                "fCtrl": {
                    "adr": true,
                    "adrAckReq": false,
                    "ack": true,
                    "fPending": false,
                    "classB": false
                },
                "fCnt": 2,
                "fOpts": null
            },
            "fPort": 1,
            "frmPayload": [
                {
                    "bytes": "h7oX4og="
                }
            ]
        },
        "mic": "56bc8834"
    }
},
{
    "uplinkMetaData": {
        "rxInfo": [
            {
                "mac": "c0ee40ffff294325",
                "time": "0001-01-01T00:00:00Z",
                "timeSinceGPSEpoch": "",
                "timestamp": 1627874620,
                "rssi": -67,
                "loRaSNR": 7.8,
                "board": 0,
                "antenna": 0
            }
        ],
        "txInfo": {
            "frequency": 902700000,
            "dataRate": {
                "modulation": "LORA",
                "bandwidth": 125,
                "spreadFactor": 10,
                "bitrate": 0
            },
            "codeRate": "4/5"
        }
    },
    "phyPayload": {
        "mhdr": {
            "mType": "ConfirmedDataUp",
            "major": "LoRaWANR1"
        },
        "macPayload": {
            "fhdr": {
                "devAddr": "0158c240",
                "fCtrl": {
                    "adr": false,
                    "adrAckReq": false,
                    "ack": false,
                    "fPending": false,
                    "classB": false
                },
                "fCnt": 2,
                "fOpts": null
            },
            "fPort": 1,
            "frmPayload": [
                {
                    "bytes": "ORmoQrU="
                }
            ]
        },
        "mic": "660f61c1"
    }
},
{
    "downlinkMetaData": {
        "txInfo": {
            "mac": "c0ee40ffff294325",
            "immediately": false,
            "timeSinceGPSEpoch": "",
            "timestamp": 1533328083,
            "frequency": 924500000,
            "power": 20,
            "dataRate": {
                "modulation": "LORA",
                "bandwidth": 500,
                "spreadFactor": 7,
                "bitrate": 0
            },
            "codeRate": "4/5",
            "iPol": true,
            "board": 0,
            "antenna": 0
        }
    },
    "phyPayload": {
        "mhdr": {
            "mType": "UnconfirmedDataDown",
            "major": "LoRaWANR1"
        },
        "macPayload": {
            "fhdr": {
                "devAddr": "0158c240",
                "fCtrl": {
                    "adr": true,
                    "adrAckReq": false,
                    "ack": true,
                    "fPending": false,
                    "classB": false
                },
                "fCnt": 1,
                "fOpts": null
            },
            "fPort": 1,
            "frmPayload": [
                {
                    "bytes": "Nnye/+I="
                }
            ]
        },
        "mic": "87f6d887"
    }
},
{
    "uplinkMetaData": {
        "rxInfo": [
            {
                "mac": "c0ee40ffff294325",
                "time": "0001-01-01T00:00:00Z",
                "timeSinceGPSEpoch": "",
                "timestamp": 1532328083,
                "rssi": -64,
                "loRaSNR": 7,
                "board": 0,
                "antenna": 0
            }
        ],
        "txInfo": {
            "frequency": 902700000,
            "dataRate": {
                "modulation": "LORA",
                "bandwidth": 125,
                "spreadFactor": 7,
                "bitrate": 0
            },
            "codeRate": "4/5"
        }
    },
    "phyPayload": {
        "mhdr": {
            "mType": "ConfirmedDataUp",
            "major": "LoRaWANR1"
        },
        "macPayload": {
            "fhdr": {
                "devAddr": "0158c240",
                "fCtrl": {
                    "adr": false,
                    "adrAckReq": false,
                    "ack": false,
                    "fPending": false,
                    "classB": false
                },
                "fCnt": 1,
                "fOpts": null
            },
            "fPort": 1,
            "frmPayload": [
                {
                    "bytes": "JyklNI4="
                }
            ]
        },
        "mic": "0414912a"
    }
}

]