Hello everyone! I can't get my son potty trained. I try to encourage h…

Hello everyone! I can't get my son potty trained. I try to encourage him, explain calmly and even offer both a potty and a toilet. He understands when he wants to go. He points with his finger and we run to the toilet, but then he stands over it and leaves. Then he immediately goes, just not where he needs to. Now that summer has arrived, we spend the whole day without diapers. Only during daytime and nighttime sleep do I put on diapers. Help me with advice on how to potty train him?