Skill levels won't increase on Sims 3 PC!
Okay so, my Sims were doing just fine in Sims 3 and now suddenly, many skills just won't increase. I tried searching everywhere for an answer, but anyone who did have problems had problems because they had vampire sims. I do not have vampire sims because i don't have expansion packs at all. I have normal, regular Sims who just suddenly won't increase the skill level anymore. For the one sim, his writing skill won't improve and for the other one, the fishing skill won't increase. They are both elders so I don't know if that has something to do with it. Anyways, I'm getting really upset now so if someone could please help me out here, that'd be great. Also, I already tried to make him take a class...didn't help. Also tried buying new computers, moving and buying more computers and even using computers in the library and at other people's houses. Plus i got him a job and tried to get him to work on his writing skill there, but nothing happened. LASTLY, I already tried to reset the sim...very confused, please help.