I don’t know, how to decode this faultcode,but actually I am not shure, that decoding will give you result, because MO is TS, and it is very primitive.
Try to execute
rxcdp:mo=rxotg-XXX;
rxasp:mo=rxotg-XXX;
rxmfp:mo=rxocf-XXX;
It will show you clear picture over this BTS.
If you will paste it here – we can try to understanf why it is faulty.