Hello, just got an error when tried to refund some payments on Sandbox environment, I have tried using PHP SDK, tried also on Square API Explorer, and have tried using different version of API here’s the error :
API_ERROR::INTERNAL_SERVER_ERROR::An internal error has occurred, and the API was unable to service your request.
Does anyone have the same issue when tried refunding the payments? Or is there any missing configuration for this one
Yes we see the same issue.
Are you still experiencing this? Also what’s your application ID and what are the payment_ids you’re trying to refund? 
The team confirmed that there was an issue and they have deployed a fix.
Thank you for confirming.
@Bryan-Square @davidw
I am also getting the same error as above. Can you assist me?
Application ID: sandbox-sq0idb-DJLTd0dCaf1bANA0_0OAAg
payment id: vLSIuuaZyHVfONKy9jD33FmnikaZY
above is the application id and payment id i am getting error
I was able to replicate and have reached out to the team. 
The team put out a fix and this is working again.
I am also getting the same error as above. can you show me how to fix it?
What’s your application ID?
Thank you for confirming.
