Reply to how do you WIPE midi mappings?

Sorry i knw this is probibly simple as but how do you wipe midi mappings on a midi keyboard? i have a nanopad2 with traktor pro 2 and i did some mappings on it and then deleted them and did some other ones that i wanted to keep but now when i press the button for say 'play sample deck c 1' it will also at the same time start and stop the track that is playing on deck a? even tho i dont have any mappings for that?

thank you!