Minecraft mod always crashes in the world when I press a button?

The game crashed whilst unexpected error
Error: java.lang.IndexOutOfBoundsException: -97

It's always there.

Since the programmer of the mods probably screwed up.

You will have to contact them.

But my friends can play it.

Do you have the same Java, Minecraft, Forge and Mod versions?

If not, then make sure that is the case.

If it still does not work afterwards, then there's a more fundamental problem, which can't be fixed by me, but only by the developer of the mod, who can find out where the error occurs.

If you have a mod, the first thing you should do is install a new forge