Hi,
This is probably related to some wrong information in your project's temp files.
The simplest thing is probably to select the software simulator as debugger, tell it to reset on the vector, start a debug session, and then close all windows, especially the DMA2 view.
Then, close the session and select RLink as debugger again.
Or you can also try to remove the project's temp files. Close Ride and then remove from the project's folder all files except .rprj, .rapp, .c, .h, .s, etc. (make a backup copy of it first )
Please tell us if that helps.
Best Regards,
Vincent