after a ERROR (example 403), park this error and go on with the list (to do list)
When a follower already is in your list or when a new follower is going to added and has a security on his profile, the error 403 is coming. The 'to do list' will stop his activity till you remove this (error)line. Is it possible to park the error and go on with the 'to do list'?
(security on his profile = protected tweets)