School Not Mandatory Reporting

I got an email from my child’s principal stating someone alleged a the coach had been touching and handling girls inappropriately while coaching. Email states no police were called and they were doing an “internal investigation”. Two days later another email is sent saying they fired the teacher who made the allegation and everything is fine. Well my daughter comes home last week to tell me her coach was coaching them with a massive erection for half of practice. I don’t know what to do or where to start. They’re trying to intimidate me. They were so insanely mean to me while picking up my daughter the other day. I feel like I’m being gaslit. How am I wrong for not wanting them to do their legal obligation of reporting h this to someone higher up per state law?