Recently we are receiving { "type": "urn:ietf:params:acme:error:rateLimited", "detail": "Service busy; retry later." } error numerous times (compared to a month ago) on Validating Challenges in Staging environment.
This takes order completion time to more than 5 minutes on occasions.
Is this occurring because of some issue? And is there any work around to avoid/decrease this type of error?