Sync recovery error

Domain=com.alamofire.error.serialization.response Code=-1011 "Request failed: bad request (400)" UserInfo={NSLocalizedDescription=Request failed: bad request (400), NSErrorFailingURLKey=https://loreal--salesdev.cs105.my.salesforce.com/services/apexrest/clm/syncmanager/records, com.alamofire.serialization.response.error.data=<5b7b226d 65737361 6765223a 22556e6b 6e6f776e 20666965 6c643a20 636c6d2e 53796e63 4d616e61 67657253 65727669 63652e53 796e6342 6f647957 72617070 65722e65 72726f72 73206174 205b6c69 6e653a31 2c20636f 6c756d6e 3a36385d 222c2265 72726f72 436f6465 223a224a 534f4e5f 50415253 45525f45 52524f52 227d5d>, com.alamofire.serialization.response.error.response=<NSHTTPURLResponse: 0x60000326b680> { URL: https://loreal--salesdev.cs105.my.salesforce.com/services/apexrest/clm/syncmanager/records } { Status Code: 400, Headers {
    "Cache-Control" =     (
        "no-cache,must-revalidate,max-age=0,no-store,private"
    );
    "Content-Type" =     (
        "application/json;charset=UTF-8"
    );
    Date =     (
        "Thu, 02 Apr 2020 11:30:11 GMT"
    );
    "Expect-CT" =     (
        "max-age=86400, report-uri=\"https://a.forcesslreports.com/Expect-CT-report/00D1w0000000Xnwm\""
    );
    "Public-Key-Pins-Report-Only" =     (
        "pin-sha256=\"9n0izTnSRF+W4W4JTq51avSXkWhQB8duS2bxVLfzXsY=\"; pin-sha256=\"5kJvNEMw0KjrCAu7eXY5HZdvyCS13BbA0VJG1RSP91w=\"; pin-sha256=\"njN4rRG+22dNXAi+yb8e3UMypgzPUPHlv4+foULwl1g=\"; max-age=86400; includeSubDomains; report-uri=\"https://a.forcesslreports.com/hpkp-report/00D1w0000000Xnwm\"";
    );
    "Strict-Transport-Security" =     (
        "max-age=31536002; includeSubDomains"
    );
    "Transfer-Encoding" =     (
        Identity
    );
    "X-Robots-Tag" =     (
        none
    );
} }}