russian fyp and age locked posts

YO WHY TF does my fyp keep turning russian/spanish??? ive emailed tiktok a hundred times and found a couple other people w the problem, everyone just said it solved itself. i think mines been like this since summer :’) no matter what at least once a day (but a lot more if im using the app more) my fyp just…turns russian? it will ALL be in russian and jokes and stuff i dont get/cant read. lowkey freaked me out at first especially cus “not interested” doesnt work. tt never gets back to me they just keep saying they will look into it. and another problem recently started popping up, i cant view half of the tiktoks my friends send me cus it says age restricted??? im 24 and my account has never been age restricted so im so frustrated and confused