Form error: Email "" does not comply with addr-spec of RFC 2822

Hello, my clients have recently reported an error on my Grav website that does not allow them to submit a form. I have tested it and get the following error:

Symfony \ Component \ Mime \ Exception \ RfcComplianceException
Email "" does not comply with addr-spec of RFC 2822.

Previously everything was working fine. Here are some additional details.

/home4/empirage/public_html/user/plugins/email/vendor/symfony/mime/Address.php

PHPCopy

private static $encoder;

private $address;
private $name;

public function __construct(string $address, string $name = '')
{
    if (!class_exists(EmailValidator::class)) {
        throw new LogicException(sprintf('The "%s" class cannot be used as it needs "%s"; try running "composer require egulias/email-validator".', __CLASS__, EmailValidator::class));
    }

    if (null === self::$validator) {
        self::$validator = new EmailValidator();
    }

    $this->address = trim($address);
    $this->name = trim(str_replace(["\n", "\r"], '', $name));

    if (!self::$validator->isValid($this->address, class_exists(MessageIDValidation::class) ? new MessageIDValidation() : new RFCValidation())) {
        throw new RfcComplianceException(sprintf('Email "%s" does not comply with addr-spec of RFC 2822.', $address));
    }
}

public function getAddress(): string
{
    return $this->address;
}

public function getName(): string
{
    return $this->name;
}

public function getEncodedAddress(): string
{
    if (null === self::$encoder) {
        self::$encoder = new IdnAddressEncoder();
    }

    return self::$encoder->encodeString($this->address);

Arguments

TXTCopy

"Email "" does not comply with addr-spec of RFC 2822."

Environment & details:
GET Data empty
POST Data
data

array:7 [▶]

form-name

"contact-form"

unique_form_id

"rvqyx0nf8dasoolegnkb"

form-nonce

"60d032cee094d5f8976b264364f783ad"

Files empty
Cookies
grav-site-8472609-admin

"16993c63e637d0574f2e1f6e9265d923"

grav-site-8472609

"d8bfd8575ca8691dc98ddb3d8705d8f3"

Session
redirect_after_login

"/contact"

user

Grav\Common\User\User {#133}

messages

Grav\Framework\Session\Messages {#135}

basic_captcha_code

"1a0781"

Server/Request Data
LSPHP_ENABLE_USER_INI

"on"

PATH

"/usr/local/bin:/usr/bin:/bin"

TEMP

"/tmp"

TMP

"/tmp"

TMPDIR

"/tmp"

PWD

"/"

HTTP_ACCEPT

"text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,/;q=0.8"

HTTP_ACCEPT_ENCODING

"gzip, deflate, br, zstd"

HTTP_ACCEPT_LANGUAGE

"en-GB,en;q=0.5"

HTTP_CONNECTION

""

CONTENT_TYPE

"multipart/form-data; boundary=---------------------------279391762542578112474043651776"

CONTENT_LENGTH

"1406"

HTTP_COOKIE

"grav-site-8472609-admin=16993c63e637d0574f2e1f6e9265d923; grav-site-8472609=d8bfd8575ca8691dc98ddb3d8705d8f3"

HTTP_HOST

"empirelanguage.com"

HTTP_REFERER

"https://empirelanguage.com/contact"

HTTP_USER_AGENT

"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:126.0) Gecko/20100101 Firefox/126.0"

HTTP_X_FORWARDED_FOR

"103.137.15.20"

HTTP_ORIGIN

"https://empirelanguage.com"

HTTP_UPGRADE_INSECURE_REQUESTS

"1"

HTTP_SEC_FETCH_DEST

"document"

HTTP_SEC_FETCH_MODE

"navigate"

HTTP_SEC_FETCH_SITE

"same-origin"

HTTP_SEC_FETCH_USER

"?1"

HTTP_PRIORITY

"u=1"

HTTP_TE

"trailers"

HTTP_X_REAL_IP

"103.137.15.20"

HTTP_X_EIG_ORIGIN

"50.87.146.91"

HTTP_X_HTTPS

"1"

REDIRECT_UNIQUE_ID

"ZmvcXvpCi5_ShEonFVfn3wAALl4"

REDIRECT_QS_ConnectionId

"171834479879816870695392"

REDIRECT_SCRIPT_URL

"/contact"

REDIRECT_SCRIPT_URI

"https://empirelanguage.com/contact"

REDIRECT_no-proxy

"1"

REDIRECT_HTTPS

"on"

REDIRECT_SSL_TLS_SNI

"empirelanguage.com"

REDIRECT_HTTP2

"on"

REDIRECT_H2PUSH

"on"

REDIRECT_H2_PUSH

"on"

REDIRECT_H2_PUSHED

""

REDIRECT_H2_PUSHED_ON

""

REDIRECT_H2_STREAM_ID

"15"

REDIRECT_H2_STREAM_TAG

"695392-340-15"

REDIRECT_STATUS

"200"

UNIQUE_ID

"ZmvcXvpCi5_ShEonFVfn3wAALl4"

QS_ConnectionId

"171834479879816870695392"

SCRIPT_URL

"/contact"

SCRIPT_URI

"https://empirelanguage.com/contact"

no-proxy

"1"

HTTPS

"on"

SSL_TLS_SNI

"empirelanguage.com"

HTTP2

"on"

H2PUSH

"on"

H2_PUSH

"on"

H2_PUSHED

""

H2_PUSHED_ON

""

H2_STREAM_ID

"15"

H2_STREAM_TAG

"695392-340-15"

SERVER_SIGNATURE

""

SERVER_SOFTWARE

"Apache"

SERVER_NAME

"empirelanguage.com"

SERVER_ADDR

"50.87.146.91"

SERVER_PORT

"443"

REMOTE_ADDR

"103.137.15.20"

DOCUMENT_ROOT

"/home4/empirage/public_html"

REQUEST_SCHEME

"https"

CONTEXT_PREFIX

""

CONTEXT_DOCUMENT_ROOT

"/home4/empirage/public_html"

SERVER_ADMIN

"[email protected]"

SCRIPT_FILENAME

"/home4/empirage/public_html/index.php"

REMOTE_PORT

"35498"

REDIRECT_URL

"/contact"

SERVER_PROTOCOL

"HTTP/2.0"

REQUEST_METHOD

"POST"

QUERY_STRING

""

REQUEST_URI

"/contact"

SCRIPT_NAME

"/index.php"

PHP_SELF

"/index.php"

REQUEST_TIME_FLOAT

1718344798.8157

REQUEST_TIME

1718344798

argv

[]

argc

0

Environment Variables empty
Registered Handlers

1. Whoops\Handler\PrettyPageHandler
2. Whoops\Handler\CallbackHandler

I've no idea what this quoted wall of text is, but error clearly says you have an empty email string somewhere