It sounds like you may need to clear the Keychain because it's possible a connection has broken on your computer.

If you have a Mac, please:

1. Close Lens Studio.
2. Open 'Keychain Access'. This can be found in Spotlight by typing Keychain Access.
3. Select 'Passwords Category' in the bottom left.
4. Search 'com.snap.LensStudio.OAuthTokens' in the top right search box.
5. Right click and select 'Delete'.

If you have a Windows, please:

1. Close Lens Studio.
2. Click on the magnifying glass in the bottom toolbar.
3. Input 'Credential Manager'.
4. Click on 'Windows Credentials' and there will be 'com.Snap.LensStudio.' entries.
5. Click on each one you see and then click 'remove'.

Then open Lens Studio and try submitting again. If you still are running into issues, please let us know.