What it is, is that your anti-virus is mistaken the crack ( the modded version that does not require origin ) for a virus, so it is slowly is deleting files. What you can do is go to your ant-virus and find the whitelist ( also known as the exceptions) list and put all the folders containing sims 4 in the exceptions list. After that, you are going to have to update your game to reinstall any of the data the anti-virus deleted.