1. Pinterest uses this error when its servers are overloaded or down.
2. Pinterest uses this error when it doesn’t like the content that you are trying to submit. Please check that your image URL and link URL are correct and valid. Please make sure that your image does not contain adult, abusive or any other disallowed on Pinterest.com content. Please make sure that your image description does not contain adult, abusive or any other disallowed on Pinterest.com content and your description does not appear as spam.