XenForo Issues after upgrading to xf 2.3

[Faust]

Hi. I have upgraded one of my forum. And now have started to received multiple issues on my dashboard:

php version: 8.4
CloudFlare set

First isue:

Code:

Symfony\Component\Mailer\Exception\TransportException: Email to email.com from no-reply@email.com failed: Process failed with exit code -1: src/vendor/symfony/mailer/Transport/Smtp/Stream/ProcessStream.php:74

Second issue:

Code:

ErrorException: IndexNow error: [429] We're sorry, but you have sent too many requests to us recently...

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