Please Help, my vanda lost roots!
 

I got a vanda from my overseas friend about a month. I have no ideas to plant them so take a pot and put some vermipost and plant there. now, i got my plant some yellow leaves so i look loot. Sadly they all got dead and just one root rest. Please help me how to save the vanda plant. some said that nothing i have to put as media. is it true? and what to feed it? if nothing media used to plant, the roots gets dry after 30 minutes i water. what to do?