If you don't have a large database then go to 'Database -> Database Management'. Click the 'Housekeeping' button and run the following in this order:
1. Reindex
2. Cluster
3. Vacuum/Analyze
After the housekeeping is complete rebuild the database cache via 'Rebuild Cache -> Full Cache Rebuild'. Next turn on 'Enable Logging' in PokerTracker 4 via 'Configure -> Options' and then restart PokerTracker 4. If the same thing happens then create a support bundle via the 'File -> Create Support Bundle' menu option in PokerTracker 4. When that file has been saved attach your support bundle to a
Support Ticket where a technician can review your logs and follow up with you.