The scan for reboot advisory log files was unable to read the next file name from the indicated file system location. No further processing of reboot advisory files from that location occurs. This message is accompanied by CLSU- messages containing details of the access error.
Report this error to Oracle Support Services.
Browse all solutions to database errors from Oracle, MS SQL or MySQL
Try the following links for this error:
http://docs.oracle.com/cd/E16655_01/server.121/e26079/crsus.htm