Please restart your computer and then start PokerTracker 4 with logging enabled - see
this guide (see method #2, #1 will not work unless you already have enabled logging previously).
If PokerTracker 4 still does not open grab your log file and attach that to a
Support Ticket:
To access the log file on Windows you can open File Explorer and enter the following in the address bar:
%localappdata%\PokerTracker 4\LogsThe file we need will be the text file called 'PokerTracker4' or 'PokerTracker4.log' that is in that folder.