Select list item error after retrieving data from Firebase

WhatsApp Image 2023-01-23 at 18.16.06

Are you trying to extract an empty value

You are using select list item block on a string. Please show the blocks for the action that is causing this error.

please help me… i have tried to fill in the empty string but its wrong

You are setting your list to the value you receive from Firebase, the value is an empty string. Is there anything in your Firebase table?