Invalid argument, error 400

(INVALID_ARGUMENT:Cannot convert an array value into an array value)

I’ve been trying to solve this for days but I have no idea, would there be any way to know more precisely which variable or input is giving the error?

I had a copy of the application working and now it doesn’t work anymore, I don’t understand

To isolate the error I put all the values ​​manually (without using the variables) in the Create record