I have a problem: I reported my friend at Ps4 because he sent a strange, stupid picture to me. And he called me and said that his Ps4 account is locked for 1 MONTH. But I did not know that his account is locked for 1 month, I thought that Sony locks the image or something. So my question: Can I do something, so that my friend is no longer banned? Please reply.
No.
You have alerted Sony to a rule violation, which they have punished accordingly.
You can't make them "forget" that again.
You can tell the support the situation, as here us. Since I do not know the quality of the Sony support, the suspension of the lock could be done already after one or two days.
In my experience, support for real blockages really cross and either they are never repealed or take forever to edit. Lucky for him it's only a month.
He is already angry and so, but he will calm down again after some time and accept my apology.
A small disarming argument would be "Well then you'll probably have to play with me more often." or spend time.
Then it's time for him to create a new account and play free to play games for a month. Say Fortinte, Paladins… What else is there. Or just play offline or not at all.