Switch Constant Crashing - Multiplayer

[Bsims]

Attempting to play a new file, but game keeps crashing. Only on day 9 of spring and crashed a few days getting there but have played through day 9 4 times now. One person in mines, one person walking through town, both on Local Communication and Online Communication. Have un-installed and re-installed game, as well as reset router and checked both Switches for any updates.
“an unknown error has occurred” is the only message that’s popped up.

 

[Dazia]

I get the same on local co-op

 

[sally]

Attempting to play a new file, but game keeps crashing. Only on day 9 of spring and crashed a few days getting there but have played through day 9 4 times now. One person in mines, one person walking through town, both on Local Communication and Online Communication. Have un-installed and re-installed game, as well as reset router and checked both Switches for any updates.
“an unknown error has occurred” is the only message that’s popped up.

Hi, My dad and I play co-op local communication, I go to the mines and the game crashes as well, this has happened at least 3 time to us