CDR is complex. Unless you have significant experience with A1 AMOs, call Siemens service. You could do more harm than good if you "experiment" with A1 commands. My guess is that your ADP restarted, and your CDR output was halted. You should handle ASAP, or you may be in danger of losing valuable CDR data. Worse case scenario: depending on the CDR config in AMO SELG, the "G" partition on your hard drive COULD "max" out, causes some system-wide detrimental problems.
Again, handle ASAP!