So I got this problem today. I watched the 10 minute video suggested by the Troubleshooter and tried everything it said but it did not help. Also I installed Windows 10 a couple of weeks ago and since then HM2 was very sluggish on startup and probably 50% of the time I had to terminate it using the task manager and restart it otherwise I was stuck on the loading screen. Also I installed Poker Tracker 4 a few days back but problem happened today.
And for the last couple of days I get this error message at random times. I don't know if it has anything to do with HM2 and PostreSQL:
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