The minimum should probably be 0.09 and you don't have it, from what I saw you only have 0.07 of USUAL

I have a question if anyone can help me: I'm kind of new here and I accidentally bought the "Usual" crypto a few days ago and now I can't get rid of it. Whenever I try to sell everything through the Pro app, there's a little bit left over. So I tried to figure out how to sell it by fraction instead of value and I couldn't. I realized that you can only sell whole numbers because of that. So I can't leave 1 or 2 or 3. I managed to leave just under 1 real now but I still have some. I wanted to know how I can sell everything and get rid of this currency. Thanks