State tax filing

Thank you for trying to help! I cannot add my business to my existing account. There is only one option available. It is Add a Clean Energy account. If I use my EIN, I get an error "Invalid EIN. After 3 tries, you'll have to wait 24 hours to try again". I recently created my EIN number. Maybe that is the reason. However, it is very confusing to prompt to create an 'Add Clean Energy account'. I have no idea what it means.