{"message":"Uncaught Error: Call to a member function addListener() on null","context":{"exception":{"class":"Error","message":"Call to a member function addListener() on null","code":0,"file":"/app/vendor/symfony/scheduler/Schedule.php:144"}},"channel":"php","extra":{},"severity":"CRITICAL","time":"2024-02-01T13:22:04.559+01:00"}

     // ...
    public function getSchedule(): Schedule
    {
        $this->schedule ??= (new Schedule())
            ->with(...$this->getGeneralMessages(), ...$this->getProductionMessages())
            ->before(function (PreRunEvent $event) {
                $this->logger?->info('Before Event');
            })
            ->after(function (PostRunEvent $event) {
                $this->logger?->info('After Event');
            })
            ->onFailure(function (FailureEvent $event) {
                $this->logger?->info('Failure Event');
                $this->logger?->info($event->getError()->getMessage());
            })
            ->lock($this->lockFactory->createLock('cron-cache'))
            ->stateful($this->cache);

        return $this->schedule;
    }