It did that to me once : the game didn't load at a date and then, it couldn't work for the upcoming days (I've called it "Doomsday" ^^). What did that is the arrival of a villager indeed, and something was blocking it, I couldn't figure it out directly but then, I have removed all the non legit trees/bushes in my town (aka : cider trees in south, trees placed directly next to each other or placed in the borders,...), and then the game could finally launch again. It didn't make sense since all of those trees weren't blocking the way to the villager's house. But I have supposed that the algorithm of the game sort of scans the whole map to be able to place the new house. So Rosenliz, You said that you didn't modified PWPs and I don't think that home renovations are causing the crash. Were you waiting the arrival of a newcomer villager ? and did you put some "Non legit trees/bushes" in your town ? (or maybe is it related to the fact that you've modified some acres ?) let us know
--------------------- MERGED ---------------------------
In the mean time, I have checked your Garden Plus file, I did see indeed that you have some cider trees south, some bushes in borders and also long lines of bushes (means that it does not respect the fact that you can't put more than 12 trees/bushes in a row in normal conditions). My advice : try to space up these lines in order to repect that rule, and see if it solves the problem. Like I said, this is what solved my "Doomsday problem" ^^, but it was difficult to figure out what was the problem because I've seen a lot of people doing all things with the trees/bushes and did not have any trouble, so it wasn't obvious to suspect the trees.