Switch login

I'm a switch player with almost no experience on phone and i really don't want to switch to mobile, tho i can't log in anymore, don't get me wrong, i can go into the game, walk around and all, but i can't join friends, if i light them i get an error message and only solution i found is to go to new home and get the bun in the shop. That only works once a day, is there someone with the same issue and is there any fix or way to play online again?