Why can't I access Hay Day?
According to support, affected users can try to clear the Hay Day app cache and data by heading over to the Manage apps section under Settings. Also, users must select the Force Stop option before clearing the cache and data then install any available Hay Day update from the Play Store and restart the device.
Is Hay Day shutting down?
Supercell has announced it will shut down another of its soft launch titles, Hay Day Pop. In a blog post today, the developer said that Hay Day Pop « does not meet the standards we have set for ourselves and our players » and would receive one final update before the servers shut down on February 1, 2020.