Send an email to email@example.com with the subject "Can't import hand history" and attach to it the text of the hand history (preferably as a file in order not to lose the exact text formatting)
Also, please let us know what room is that (for example PokerStars, 888, etc.) because sometimes it's not clear from the text of the hand history.
Use the function “Share this result" on the results screen if possible, so we can see the exact hand or situation where the problem occurred.
Customer support service by UserEcho