Don’t worry, we won’t get angry. Just contact the centre management team and they can unblock users on the CMS.
Same goes for you. If you cannot access the app but have been able to before, it may be that you have been blocked. It could be that you have changed jobs and are working at a different store; you selected the wrong store by registering, or even a mistake. Don’t worry; just contact your centre management team and they will be able to unblock you.