[28-Jan-2026 09:15:15 UTC] PHP Fatal error:  Uncaught Error: Interface 'kamermans\OAuth2\Token\Serializable' not found in /home/whizzmailer/public_html/swiss-belhotel-v2/vendor/kamermans/guzzle-oauth2-subscriber/src/Token/RawToken.php:5
Stack trace:
#0 {main}
  thrown in /home/whizzmailer/public_html/swiss-belhotel-v2/vendor/kamermans/guzzle-oauth2-subscriber/src/Token/RawToken.php on line 5
