Deprecated: Return type of Horde_Imap_Client_Base::update(SplSubject $subject) should either be compatible with SplObserver::update(SplSubject $subject): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/edepracl/public_html/moodle30/lib/horde/framework/Horde/Imap/Client/Base.php on line 344