Good morning, everyone. Here's my problem.
I'm creating a site to list karaoke titles. When I add an artist, everything is fine, it creates a dynamic page for me in the name of the artist created.
But when I want to create a title for a specific artist, the title appears on all "Artists" pages. I've tried a lot of methods, but I can't find out where it's wrong. Please, help me, please, I'm desperate, I've been stuck for 3 days.
Below, the address of my site (You can try to enter new artists (Starting with the letter A, I haven't finished the menu yet) or titles, to understand)
I also put you screenshots of my two specific databases.