Why won’t my nintendogs get past the loading screen?

apology in advance for any misspellings it’s not my strong suit and this is my first postLOL

very recently got a 3ds for Christmas along with 2 games, Pokémon ultra moon and nintendogs + cats

I’ve been playing pkm um fine without any mishaps, but whenever I try to get nintendogs working it sits on the screen (shown in photo) without changing only way to get it off this screen is by removing card or restarting console, no other buttons work beside volume . At first I was worried that I had a fake cartrage but comparing to verified ones I had it has no signs I can see of being a fake. Another thing to point out is that I belive my 3ds was originally Japanese as it had Japanese notifications before the English ones along with Japanese text as the copyright on the bottom now I belive is set in uk). I get error code 005-5958 sometimes whlie trying to update ot run anything internet related. that English ultramoon runs fine thought so I don’t see why nintendogs won’t if Thats the problem ? I test ran another Pokémon game(Pokémon platinum english) and that ran fine aswel. any ideas to a possible problem as I was excited to play:(.

Any solutions? Can’t find any googling. can give more details if needed. Thanks!!!