So today as said I have repoted which actually was vety good because only half of the roots was dead the reson i hesitated was that I took it only two months ago and in the first month I saw new air roots but at the second month they started root and I'm not over watering I have watered my other orchid to which have been grow 5 cm in any flower shoot. So my advice keep watching close on any new plant because you don't know regardless of the vendor's description what paste, disease or root state the plant have. AND SO IT'S SHOULD BE ISOLATED FROM OTHER PLANTS FOR TWO TO THREE MONTHS. The last photo is after I repoted.