So i bought an used traktor audio 8 and it is giving me problems with traktor, when i plug it and play with it i get a rare interference like if the sound get disturbed, i have been reading and looking for a solution but i just get this thread of NI

https://support.native-instruments.c...022.1495853730

maybe its my mac? should i downgrade the osx? or maybe its the broken audio card?

pds: sorry for my english