Hi,
good progress! the code is actually working and logging the data you collected, however as you can see in the log when you preview your page, you get an error that such a db collection under the name does not exist
wixData.insert("Followings"
see the developer console here below:
you first need to define the collection with the right schema, choose reference data type to the profile collection. and when you use wix-data insert you should set the _id column of the collection you reference to
Shlomi