I have an error code on my eBay and I cannot adjust the price of any goods. HELP

[emmiesh-58]

Error 402 error 2002

[twyngwyn]

Anything here? 

https://www.google.com/gasearch?q=error%20402%20error%202002&source=sh/x/gs/m2/5

[twyngwyn]

You have discount codes on your items.....anything to do with that???