SQLSTATE[23502] when trying to store data

[pallid girder]

I mean, it's pretty clear?

You're trying to store a "Tournament" record without a "name"

please don't use screenshots, wrap your code in three ` marks either side
But you can see in the error message, that you're inserting:
user_id, updated_at, created_at
into your tournaments table

and not sending anything else

You haven't shared the relevant lines of code for where you're actually interacting with the Model etc