Noticed this in 1.32.0-wmf.8
#0 /srv/mediawiki/php-1.32.0-wmf.8/extensions/Echo/includes/formatters/EventPresentationModel.php(99): NO_FUNCTION_GIVEN() #1 /srv/mediawiki/php-1.32.0-wmf.8/extensions/Echo/includes/formatters/EchoEventFormatter.php(58): EchoEventPresentationModel::factory(EchoEvent, LanguageEn, User) #2 /srv/mediawiki/php-1.32.0-wmf.8/extensions/Echo/includes/DataOutputFormatter.php(171): EchoEventFormatter->format(EchoEvent) #3 /srv/mediawiki/php-1.32.0-wmf.8/extensions/Echo/includes/DataOutputFormatter.php(136): EchoDataOutputFormatter::formatNotification(EchoEvent, User, string, LanguageEn) #4 /srv/mediawiki/php-1.32.0-wmf.8/extensions/Echo/includes/api/ApiEchoNotifications.php(265): EchoDataOutputFormatter::formatOutput(EchoNotification, string, User, LanguageEn) #5 /srv/mediawiki/php-1.32.0-wmf.8/extensions/Echo/includes/api/ApiEchoNotifications.php(105): ApiEchoNotifications->getPropList(User, array, array, integer, NULL, string, NULL, boolean, boolean) #6 /srv/mediawiki/php-1.32.0-wmf.8/extensions/Echo/includes/api/ApiEchoNotifications.php(36): ApiEchoNotifications->getLocalNotifications(array) #7 /srv/mediawiki/php-1.32.0-wmf.8/includes/api/ApiQuery.php(249): ApiEchoNotifications->execute() #8 /srv/mediawiki/php-1.32.0-wmf.8/includes/api/ApiMain.php(1581): ApiQuery->execute() #9 /srv/mediawiki/php-1.32.0-wmf.8/includes/api/ApiMain.php(535): ApiMain->executeAction() #10 /srv/mediawiki/php-1.32.0-wmf.8/includes/api/ApiMain.php(506): ApiMain->executeActionWithErrorHandling() #11 /srv/mediawiki/php-1.32.0-wmf.8/api.php(83): ApiMain->execute() #12 /srv/mediawiki/w/api.php(3): include(string) #13 {main}