2026-10-10 23:32:37 SERVER -&gt; CLIENT: 220 smtp.gmail.com ESMTP af79cd13be357-93eb984889fsm525337885a.13 - gsmtp<br>
2026-10-10 23:32:37 CLIENT -&gt; SERVER: EHLO devx82.bye2027.site<br>
2026-10-10 23:32:37 SERVER -&gt; CLIENT: 250-smtp.gmail.com at your service, [52.5.41.233]250-SIZE 35882577250-8BITMIME250-AUTH LOGIN PLAIN XOAUTH2 PLAIN-CLIENTTOKEN OAUTHBEARER XOAUTH250-ENHANCEDSTATUSCODES250-PIPELINING250-CHUNKING250 SMTPUTF8<br>
<br />
<b>Fatal error</b>:  Uncaught League\OAuth2\Client\Provider\Exception\IdentityProviderException: deleted_client in /var/www/html/phpkobo/research/php-downloaded-apps/phpmailer/vendor/league/oauth2-google/src/Provider/Google.php:118
Stack trace:
#0 /var/www/html/phpkobo/research/php-downloaded-apps/phpmailer/vendor/league/oauth2-client/src/Provider/AbstractProvider.php(628): League\OAuth2\Client\Provider\Google-&gt;checkResponse(Object(GuzzleHttp\Psr7\Response), Array)
#1 /var/www/html/phpkobo/research/php-downloaded-apps/phpmailer/vendor/league/oauth2-client/src/Provider/AbstractProvider.php(537): League\OAuth2\Client\Provider\AbstractProvider-&gt;getParsedResponse(Object(GuzzleHttp\Psr7\Request))
#2 /var/www/html/phpkobo/research/php-downloaded-apps/phpmailer/vendor/phpmailer/phpmailer/src/OAuth.php(113): League\OAuth2\Client\Provider\AbstractProvider-&gt;getAccessToken(Object(League\OAuth2\Client\Grant\RefreshToken), Array)
#3 /var/www/html/phpkobo/research/php-downloaded-apps/phpmailer/vendor/phpmailer/phpmailer/src/OAuth.php(128): PHPMailer\PHPMailer\OAuth-&gt;getToken()
#4 /var/www/html/phpkobo/research/php-downloaded-apps/phpmailer/vendor/phpmailer/phpmailer/src/SMTP.php(598): PHPMailer\PHPMailer\OAuth-&gt;getOauth64()
#5 /var/www/html/phpkobo/research/php-downloaded-apps/phpmailer/vendor/phpmailer/phpmailer/src/PHPMailer.php(2171): PHPMailer\PHPMailer\SMTP-&gt;authenticate('', '', 'XOAUTH2', Object(PHPMailer\PHPMailer\OAuth))
#6 /var/www/html/phpkobo/research/php-downloaded-apps/phpmailer/vendor/phpmailer/phpmailer/src/PHPMailer.php(1988): PHPMailer\PHPMailer\PHPMailer-&gt;smtpConnect(Array)
#7 /var/www/html/phpkobo/research/php-downloaded-apps/phpmailer/vendor/phpmailer/phpmailer/src/PHPMailer.php(1654): PHPMailer\PHPMailer\PHPMailer-&gt;smtpSend('Date: Sat, 10 O...', 'This is a multi...')
#8 /var/www/html/phpkobo/research/php-downloaded-apps/phpmailer/vendor/phpmailer/phpmailer/src/PHPMailer.php(1492): PHPMailer\PHPMailer\PHPMailer-&gt;postSend()
#9 /var/www/html/phpkobo/research/php-downloaded-apps/phpmailer/examples/gmail-xoauth.php(123): PHPMailer\PHPMailer\PHPMailer-&gt;send()
#10 {main}
  thrown in <b>/var/www/html/phpkobo/research/php-downloaded-apps/phpmailer/vendor/league/oauth2-google/src/Provider/Google.php</b> on line <b>118</b><br />
2026-10-10 23:32:37 CLIENT -&gt; SERVER: QUIT<br>
2026-10-10 23:32:37 SERVER -&gt; CLIENT: 221 2.0.0 closing connection af79cd13be357-93eb984889fsm525337885a.13 - gsmtp<br>