Insert and login

I have had a look through the forum and have tried to copy a solution from another post but it isn't working.

I am trying to login in a user and also log the ip and date/time they logged in.

I have added the security assist function to authenticate the user (I have left the redirect on success blank). I have added a dataassist insert to the page to insert the username, date and ip - note: I only want this to be inserted if the username and password is correct

however nothing is getting inserted and it isn't redirecting. The login function worked before I added the insert to the page and removed the redirect on success.

I have attached a copy of the page.