Notification is not creating / not display

[mehulTank]

I am using this package to display local notifications. I am getting one issue while using this package for displaying local notifications. in my application schedule, many notifications .it are working fine initially such as 3 4 days. after a few days not coming to any notification on any devices like android or ios. I tried many things cached clear, Storage clear, uninstall an application fresh install application but didn't get any notification