Education edition

I'm creating a world in Minecraft with chemistry, but it doesn't work. I don’t really understand what’s wrong, it doesn’t work with mods or without anything. I reinstalled, deleted mods, created worlds several times, tried different settings and the problem is not solved. It somehow worked once, but I don’t understand how. On the tablet (Galaxy tab 8A) everything works, but on the phone, even with a reboot it doesn’t