cant log in after the update 

Nice n sweet jase. Wish you could install rep system and chatbox to this.
Sent from my GT-I9300 using JazzFanz mobile app
I was just congratulating the whole app being back thing. I have nothing on the log in issue sorry. Except that I can confirm that no probs here.Guessing a reinstall worked then? Sorry about that. Hopefully people try that and I'll let Tapatalk know about it since they built it for us.
What's the error and which OS? Can you try deleting the app and reinstalling just to check?