Blue ring Link completely black???!!!

It's probably a cset problem. What version and tileset are you using?

I'm using the 2.5 version build672, and I'm using the default tileset.

I think it's a problem with my C-set 6 But I still don't know what to do?

Item editor->Ring, make sure the right cset number is in the "use sprite cset" box.

Then doublecheck Pallete->misc sprites->Cset 6-9 I believe.