We find Tapatalk to be generally pretty horrible, but have you tried their Support Forum?
There's a subforum dedicated to issues with mobile access:
https://www.tapatalk.com/groups/tapa...obile-app-f93/
Most of their "support desk" personnel are pretty awful, too, but if you're lucky you'll reach ChrisW,
who seems to be about the only friendly and helpful person on staff.