This bug is related to a ticket that was closed a year ago:
3370549
🐛
Creation of dynamic property Drupal\email_tfa\EventSubscriber\EmailTfaSubscriber::$request is deprecated
Needs review
After upgrading to PHP 8.3 we received the following two error messages:
Deprecated function: Creation of dynamic property Drupal\email_tfa\EventSubscriber\EmailTfaSubscriber::$request is deprecated in Drupal\email_tfa\EventSubscriber\EmailTfaSubscriber->__construct() (line 114 of modules/contrib/email_tfa/src/EventSubscriber/EmailTfaSubscriber.php).
Deprecated function: Creation of dynamic property Drupal\email_tfa\EventSubscriber\EmailTfaSubscriber::$moduleHandler is deprecated in Drupal\email_tfa\EventSubscriber\EmailTfaSubscriber->__construct() (line 117 of modules/contrib/email_tfa/src/EventSubscriber/EmailTfaSubscriber.php).
Ensure PHP is version >=8.3.
Install v1 composer using: require 'drupal/email_tfa:^1.0'
Enable showing errors
Since the ticket is already closed and development on 1.0.x is no longer in active development, I thought I'd just leave the patch here we used.
Needs review
1.0
Code
The current version (1.0.x) is not compatible with PHP 8.3, and this branch is no longer actively maintained. You can either use the 2.0.x version, which supports newer PHP versions, or apply the patch as a temporary workaround.