SAP Message RSBK206 - Previous request (ID &1) has status 'red'

Diagnosis
You want to generate a new data transfer process request (DTP request).This is not possible, however, since the last request of the DTP thatwas processed with ID &V1& has status Red. A DTP cannot generatea new request, however, until the last request that was processed hasstatus Green or Deleted.

System Response
The request could not be generated.

Procedure
Delete the request with ID &V1& or start the processing of this requestagain.
If you want to avoid this error message in future, in the DTPmaintenance on the Execute tab page, set the Automatically Repeat Red Requests in ProcessChains indicator.