Common Error Code

Error Code	Solution
400 - Bad Request	Please double check the parameters in the request
401, 402 - Unauthorized	Please use the correct API Key (Only for Pro User)
403 - Forbidden	Please contact us to whitelist your IP, seems you have broken some of the security strategies
404 - Not Found	Please double check whether the request URL exist.
429 - Too Many Requests	Please lower your request rate
500 - Internal Server Error	Please double check your request and contact us
502 - Bad Gateway	The proxy gateway server cannot receive the respond
503 - Service Unavailable	Server is overload or maintenance
504 - Gateway Timeout	Server timeout
509 - Concurrency Limit	Please lower the concurrency