SMTP erreur

Bonjour,

Besoin d'aide s'il vous plait, j'utilise PHPMailer pour l'envoi de mail de mes formulaires. J'uilise les parametres SMTP de gmail

#
$mail->IsSMTP();
    $mail->SMTPDebug = 3;
    $mail->SMTPAuth = TRUE;
    $mail->SMTPSecure = "ssl";
    $mail->Port     = 465;  
    $mail->Username = "xxx@gmail.com";
    $mail->Password = "passwordxxx";
    $mail->Host     = "smtp.gmail.com";
    $mail->Mailer   = "smtp";
    $mail->SetFrom("xxx@gmail.com");
    $mail->AddAddress("reception@gmail.com"); 
    $mail->Subject = "Mail";
#

, en local les mails passent et je n'ai aucun message d'erreur. Mais quand j'utilise les memes parametres sur mon serveur LWS j'ai une erreur

2020-03-28 16:17:47 Connection: opening to ssl://smtp.gmail.com:465, timeout=300, options=array()
2020-03-28 16:17:47 Connection: opened
2020-03-28 16:17:47 SERVER -> CLIENT: 220 smtp.gmail.com ESMTP u11sm13280693wrt.29 - gsmtp
2020-03-28 16:17:47 CLIENT -> SERVER: EHLO test.cstechdev.net
2020-03-28 16:17:47 SERVER -> CLIENT: 250-smtp.gmail.com at your service, [91.234.195.181]250-SIZE 35882577250-8BITMIME250-AUTH LOGIN PLAIN XOAUTH2 PLAIN-CLIENTTOKEN OAUTHBEARER XOAUTH250-ENHANCEDSTATUSCODES250-PIPELINING250-CHUNKING250 SMTPUTF8
2020-03-28 16:17:47 CLIENT -> SERVER: AUTH LOGIN
2020-03-28 16:17:47 SERVER -> CLIENT: 334 VXNlcm5hbWU6
2020-03-28 16:17:47 CLIENT -> SERVER: [credentials hidden]
2020-03-28 16:17:47 SERVER -> CLIENT: 334 UGFzc3dvcmQ6
2020-03-28 16:17:47 CLIENT -> SERVER: [credentials hidden]
2020-03-28 16:17:48 SERVER -> CLIENT: 534-5.7.14 <https://accounts.google.com/signin/continue?sarp=1&scc=1&plt=AKgnsbu534-5.7.14 _o-ss5Ffi1k5FRHmxSJxqyp5_c1iv7ALcZ30qlOoTVhRtGuH7Sa9_xNuw-1kVEwmnJhBh534-5.7.14 G2Yo0Olaov6tKyRglYiUNVN4cPJ1fhKxrHa6vBGdQknRZfA6ceTBpSw9_iv9_5YA>534-5.7.14 Please log in via your web browser and then try again.534-5.7.14 Learn more at534 5.7.14 https://support.google.com/mail/answer/7126229?visit_id=637243059728697425-4085660714&rd=2#cantsignin u11sm13280693wrt.29 - gsmtp
2020-03-28 16:17:48 SMTP ERROR: Password command failed: 534-5.7.14 <https://accounts.google.com/signin/continue?sarp=1&scc=1&plt=AKgnsbu534-5.7.14 _o-ss5Ffi1k5FRHmxSJxqyp5_c1iv7ALcZ30qlOoTVhRtGuH7Sa9_xNuw-1kVEwmnJhBh534-5.7.14 G2Yo0Olaov6tKyRglYiUNVN4cPJ1fhKxrHa6vBGdQknRZfA6ceTBpSw9_iv9_5YA>534-5.7.14 Please log in via your web browser and then try again.534-5.7.14 Learn more at534 5.7.14 https://support.google.com/mail/answer/7126229?visit_id=637243059728697425-4085660714&rd=2#cantsignin u11sm13280693wrt.29 - gsmtp
SMTP Error: Could not authenticate.
2020-03-28 16:17:48 CLIENT -> SERVER: QUIT
2020-03-28 16:17:48 SERVER -> CLIENT: 221 2.0.0 closing connection u11sm13280693wrt.29 - gsmtp
2020-03-28 16:17:48 Connection: closed
SMTP Error: Could not authenticate.
Message non envoyé, veuillez réessayer.

EDIT : Ajout des balises d code