Channels has received an Error when trying to read the SOAP WSDL from your Magento Server. This is likely due to recent changes made to your Magento Server by your team. This is blocking your integration. Please review recent changes made to your Magento settings asap.
Magento "talks to itself" in order to parse SOAP calls. Sometimes the call to itself fails, and when that happens Accumula receives this message.
The easiest way to resolve these errors is to turn on WSDL caching. This option is located in the Magento system panel under System > Configuration > Magento Core API > General Settings. We recommend contacting your Magento developer if you have difficulty or concerns with changing this setting.
When you encounter this error only once it is most likely a single instance of a connectivity issue. If an error is encountered repeatedly it is always recommended that a review of recent changes to the Magento server or configuration is done.