Error 500 on Subscribe for Basic/Premium/Anchor Store
I have to test GetStore to retrieve store custom categories. For this purpose I try to subscribe for a store in sandbox '*My eBay->Account->Subscriptions*' and press on the link '*Subscribe*' in '*eBay Store*' section. As a result I receive "**Error 500 Error Message : Internal Server Error**". Is this a temporary error or I must report a bug?