TurboTax Premier 2018 fails on Mac High Sierra 10.13. I have deleted the install and re installed. After the turbo tax update, forms failed. Tried all the FAQ tips.

[Anonymous]

• 2018: macOS X v.10.12 or later (64-bit required) is your os 64 bit? 

other things that could cause problems    - anti-virus,  firewall,     did you install other software,   malware. lack of disk space.  

do you get any sort of error message?