When I tried to open "After effetct". It didn't open or load or anything. I't was like I didn't even click the button. But, now The software try to load but it gives me 2 messages. First one about color theme. And when I press ok it gives me another message of failur. I will attach 2 screen shots of the messages. Please tell me if you need more information.
That would indicate that a critical resource file is not available. Either it was not installed correctly in the first place or is blocked due to insufficient user privileges/ folder permissions. I would suggest you reinstall the app again, ensuring none of these things get in the way.