| 101 | invalid_key | The API Key is missing or invalid. |
| 102 | inactive_user | The API Key owner (the account) is inactive right now. Please contact the support team for more information. |
| 103 | limit_reached | You reached the usage limit of your account. Please upgrade your subscription or pay any unpaid invoices. |
| 104 | invalid_params | Please check out the parms parameter’s value. |
| 105 | plan_expired | Your plan has expired. Renew the subscription to enable using the API. |
| 106 | flood_detected | Our system has detected too many requests at the same time. Kindly please try to slow down. |
| 108 | invalid_format | The value of the format parameter is not a valid format. Use JSON, or XML. |
| 111 | invalid_mode | The value of the mode parameter is not a valid format. Use test or live. |
| 113 | domain_not_whitelisted | You are sending the request from a domain that is not the domain name you set in the API settings of your account’s dashboard. |
| 115 | generic_error | An error occurred while processing your request. Please try again later. |
| 117 | feature_not_available | This feature is not available for your plan, please upgrade your plan first. |
| 120 | invalid_bin_number | The BIN number is invalid or missing. |
| 124 | invalid_user_type | The user type is invalid or missing. Use email, phone or user_id. |
| 125 | invalid_user_value | The user value is invalid or missing (value parameter). |
| 126 | too_many_deletions | You have reached the limit of deletions for this day. Please wait until the next day to delete more user data. |