The interface error from the document https://developer.samsung.com/galaxy-store/galaxy-store-developer-api/content-publish-api/update-staged-rollout-rate.html is: {"from":"seller","body":{"resultCode":"9000","resultMessage":"Internal Server Error"},"message":"Request failed with status code 500"}. Now I want to change the staged rollout percentage for an app with the status “SALE”. The input parameters are appStatus set to “SALE”, function filled with “ENABLE_ROLLOUT”, and rolloutRate set to 4. I received this error.