The authentication for the connector you created has failed.
In order to solve this issue you need to reauthorize the connector in order for it to run again.
The connector cannot retrieve the data as the user changed their password.
Please reauthorize the connector using the new credentials.
The access token is expired
The access token is expired, thus it is not longer usable.
Please provide an up to date access token.
The start date you have provided is set too much in the past. e.g. Sklik allows data retrieval for only 400 days back.
Please adjust the start date so that it falls within the accepted interval of the connector.
Your request failed on timeout.
The creation of report was tried 3 times, but there is some problem with it. Review your query and try again.
No data has been returned for the selected period.
Please adjust the date range.
Daily download limit exceeded
The daily download limit has been exceeded, thus unable to retrieve data.
Please wait until the connector is able to get the data.
The API calls quota exceeded, thus unable to retrieve data.
Please wait until the API calls quote refreshes and the connector can retrieve data once again.
The Transaction Feed file you have sent is in the wrong format.
Please double-check the Transaction Feed guidelines and adjust the file to the correct format.