What Michel said is correct, install all the latest patches for RME itself and also the latest device packages for RME (which are needed to do the config collection).
But to get rid of this failure you need to delete the device from RME and re-add it again. This is necessary as there is database entry for this device missing and/or the according archive directory and file is missing also.
The reason for this (beside of a bug) could also be an unclean shutdown of the LMS server: power failure, or system shutdown without stopping the LMS processes before.
We are pleased to announce availability of Beta software for 16.6.3. 16.6.3 will be the second rebuild on the 16.6 release train targeted towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are looking for early feedback from custome...