Since the Password Input part seems to lack good feedback:
By pressing Enter inside the Input field it checks if you have the correct code (no space). If the password is correct the Input Field should disappear.
Spoilers / Solutions below!
Some small tipps regarding the passwords:
1. Might be easy to miss but maybe there is some field you have not clicked yet?
2. Check the profile pictures of users and see if you can notice a connection.
3. Not the current Year maybe there is another Date that can be used?