My sim has disappeared along with the icon!!!!!

My game shut off with my computer because my HP did an update and when it turned back on I reloaded it and my game only has three out of four family members.. The Icon is missing. I clicked on the wife and looked in relationships and he is still there as a husband but it won't let me click on it. I do not wish to restart the game I've put so much into so if there is another way....