Can't change Brooch and Rings

There’s a problem,I sold all my inefficient Brooch & Rings and I had no ill_equipped rings left 

Now I can’t change the Rings between my heroes…

What should I do? 

you need an extra ring (better 2) to change rings between heroes. You should buy some blessed item treasures (bad but low gold price). Once you get some, you can exchange.

Yes you’re right?

Thanks alot

But it must be able to change rings in this case too…