DB21034E The command was processed as an SQL statement because it was not a
valid Command Line Processor command. During SQL processing it returned:
SQL20241N Writing a history file entry for dropped table
"{tablename}" failed. SQLSTATE=560C2

I also face similar error related to history tables when I take Backup

SQL2048N An error occurred while accessing object "db2rhist.asc". Reason
code: "2".

Can somebody suggest me how to resolve these errors.