环信node端服务器调用restAPI 获取聊天记录，返回reach_limit

返回{"error":"reach_limit","timestamp":1465791386172,"duration":0,"exception":"com.easemob.flow.exceptions.ReachLimitException","error_description":"This request has reached api limit."}
说是调用太多被限制，问题是我个人开发根本没去调用，会是什么问题？