Which rule is violated in the following configuration 1s^2 2s^2 2px^2 2py^1. State the rule

It should be 1s²2s²2px¹2py¹2pz¹.

When electrons fill the same orbital, the spin should be maximum.

When electrons fill orbitals with the same energy, electrons should fill, at first, all these orbitals with one electron each. Sun of spins of these electrons should be maximum.