Prepaid purchase plan Error: mint.developerRatePlanAcceptError

[chawkimatta]

i have a Prepaid dev: that i have issued credits via api,

but We are getting "" error when purchasing a rate plan (via API)

{ "code": "mint.developerRatePlanAcceptError",

"message": "Error in developer [{org}@@@{dev-Id}] accepting rate plan [{org}@@@{rate-plan}]", "contexts": [],

"cause": {

"message": "Error in developer [{org}@@@{dev-Id}] accepting rate plan [{org}@@@{{rate-plan}]", "contexts": []

}

}