Make sure your computer meets the game's system requirements.
Such a problem can be caused by a number of different reasons. Please contact Awem Support Service at firstname.lastname@example.org. Make sure to specify the nature of the problem and provide as much relevant information as possible.
Depending on the problem that you experience, we may request additional information via e-mail such as your brief Mac specs, game saves, screenshots, etc. in order to look into the problem.