Need help with an error

I got this error and I don’t know why I got it and how to get rid of it

Argument #1 (Value Test) to ‘,java.util.List)’ has wrong type (java.lang.String) (java.lang.String cannot be cast to
Note: You will not see another error reported for 5 seconds.

Here are the blocks that generated the error

The firebase value is not in expected dictionary mode it seems…

Use one label and print this vaklue without dictionary mode then you decide what should to use