You don’t need to log in anymore! Just open the app and start making characters and videos.
Your characters and plots are saved locally on your device, you will be able to access them without an account.
If you are missing any content that you have purchased, you can go to Settings and click "Restore purchases". That will sync to your App Store or Play Store account and give you access to your scenes, clothes and voices again.
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If you are still having problems downloading your scenes or clothes, it could be because your purchases are not registered on your App Store or Play Store account.
Did you make your purchases on another device? Maybe on an Android device, and then you switched to iOS?
Did you make your purchases on the old (now-discontinued) Story desktop software for Mac or Windows?
Please give us more information on how and where you bought your scenes, clothes and voices, and we will try to help you out.