Grounding issues with numark NV

Sorry Mustafa but this sounds not like an earthing problem, it sounds more like a problem with your controller in general and we are not Numark.
So kindly contact Numark support regarding this issue and they are usually very fast to respond.

Also please refrain from requests like ASAP as this is not very respectful. We are a volunteer platform here and use our spare time to help others. We are not getting any money or benefits and hence would ask for the respect we think we deserve.