Sims 4 ghosts

I'm having the same issue! My sim gets invited to a get together, and over half are ghosts!  They aren't in the house management to delete as some have suggested. They scare my sim when she is out at the gatherings. And sometimes, they get stuck as the club leader, and I can't make any changes to the club, because I cannot become the leader. EA please fix this ASAP! I want my sim to be able to meet the living and cultivate new relationships and have new people move into the houses to progress! It's boring when nobody new is ever introduced into the mix. The ghosts are annoying. The only way to get rid of them shouldn't be to waste my time and energy on finding the urn of a character I didn't even create or ever play!