What does error_code 1031 mean?

[suphiyasin]

error_code: 1031
What does it mean? I get this in the verification code sent to the e-mail.
I am sending the $code I sent in compliance with Tiktok encryption.

$url = 'https://api31-normal-useast1a.tiktokv.com/passport/email/bind/?passport-sdk-version=19&iid=7332966609462544130&device_id=7008834xx89697&ac=wifi&channel=googleplay&aid=1233&app_name=musical_ly&version_code=2 60705&version_name=26.7.5&device_platform =android&ab_version=26.7.5&ssmix=a&device_type=SM-G977N&device_brand=samsung&language=tr&os_api=28&os_version=9&openudid=cf52b5adef29344e&manifest_version_code=2022607050&resolution=1080*1920&dpi=320&update_version_code =2022607050&_rticket=1707410555002&app_type=normal&sys_region=TR&mcc_mnc=28601&timezone_name=Africa%2FNairobi&carrier_region_v2=286&app_language=tr&carrier_region=TR&ac2 =wifi5g&uoo=0&op_region=TR&timezone_offset=10800&build_number=26.7.5&host_abi=armeabi-v7a&locale=tr-TR&region=TR&ts=1707410553&cdid=89604cfc-db97-4ec0-92bf-9d17eb4cc7f0&support_webview=1&ok http_version=4.1.103.14-tiktok&use_store_region_cookie=1';
$data = 'code='.$code.'&account_sdk_source=app&multi_login=1&type=3d&mix_mode=1';

{"data":{"captcha":"","desc_url":"","description":"Invalid Email address","error_code":1031},"message":"error"}