ITunes error : Could not purchase “iTunes Match”

Hi experts,
I am having trouble using iTunes, I am getting the following error message: Could not purchase “iTunes Match”.
An unknown error occurred (5002)
I tried many times to resolve this error by searching on internet but can’t find any solution.
I want to resolve this issue as soon as possible so any suggestion would be helpful.
Thanks.

Error Message: Could not purchase “iTunes Match”. An unknown error occurred (5002).
There was an error in the iTunes Store. Please try again later.
