I had sim die in my current game, I got the opportunity "Oh My Ghost". I went to the Landgrabb Science place to achieve opportunity but there was no option for "Oh My Ghost", not even a gray out. I had read on forums to go to edit town mode and pick up the Landgrabb Science and place it back. Ever since so I haven't received any further opportunities. I played multiple weeks in sim's time without any more opportunities. So my question is how to I get the opportunities back and also if I can get the "Oh My Ghost" opportunity again using the same sim? In addition, I made ambrosia and left it by a "townie" grave when the ghost summoned it ate the ambrosia and returned to live, but I am unable to contact this sim or interact with it. Why is this? I am using cheats. Also are modifications considered cheats? I read on forums that modifications can stop you from being able to do things, what are these things?