There is a driver specifically designed for mining. They are not very critical to the equipment. The installation of these drivers will help you. I have the same driver works AMD 7990 and RX 580. Try to contact the support NiceHash. They spetsializiruyutsya in such situations.
No info from NiceHash support. They offered to read FAQ once more, no useful info in it.
Older GPUs need to use Nicehash legacy. Latest clients do not support older GPUs