If you've having issues logging in to your Church App account, it could be that you need to download the app again.
This last month, Church App changed it's name to Church Suite. You can read more about why here: https://churchsuite.com/blog/2017/06/12/churchapp-is-now-churchsuite
Use the same log in and account details, same passwords, but delete the app and download Church Suite in stead.
If you want to access your Church Suite account on a web page, please use the web url:
Please use your email, password and select 'my church suite' from the drop down. You only need to register once for an account. Thereafter you can access your account via the app on tablets and mobile devices or by web browser using the url above.