punishment, penalty
罸 centers on the idea of a formal penalty or punishment, often with a sense of a fine or sanction imposed for wrongdoing.
罸 is a variant form of 罰, combining 罒 (net) with 討 (to chastise). The net suggests entrapment or capture, while 討 adds the idea of verbal or physical correction, together expressing punishment.
A net (罒) catches wrongdoing, and below it 討 (chastise) delivers the penalty. Imagine a net trapping a criminal, who then receives a formal punishment.
For バツ, picture a judge slamming a gavel and shouting 'Bats!' as a penalty is handed down: Bats -> バツ, and the net ensures no escape from the punishment.