Problems with language and save files [SOLVED]

Hi everybody. So yesterday I tried to install the Parenthood game pack but something went wrong. I had never had issues after installing updates, actually the game starts properly when I try to open it and the game pack is there, but the language won't change to italian even though I downloaded the multilanguage pack from csrin. In addition, the saves don't show up in the game; when I opened the folder to see if I deleted the save files by mistake, to my surprise, they were still there. Is there any solution? Thanks in advance!

I think I figured it out: since in italian the folder The Sims 4 has the same name, the only thing I had to do was changing the ini to it_IT, which I always do but this time I forgot and changed the language only on regedit. For the saves, I noticed something strange: if I clicked on the play button none of my houseolds showed up, but when I clicked on load a game all of my saves were there; I loaded the last save and, again, all my households were gone, so I loaded the next-to-last save and my households reappeared! So the problem was the last save that somehow "hid" the previous ones, and I deleted it.