Hi,
Welcome to the community!
I think the problem you are having is because value for multi=True is a list, but you are initializing the component with value=df.columns[0] (a string). Then df[value] will be a pd.Series, and you might have the rest of the callback expecting a dataframe instead. If that is the case, value=[df.columns[0]] should be a quick fix.
Does it help?