My job failed leaving the loading table, ET and UV tables locked. The ET and UV tables were accidently droped. After that when the fastload was run on the same table (which is still locked), this error was returned.
Ali--you can try doing a fast load after dropping and rebuilding the target table(the one which was locked).
Yes, once the error tables are dropped, the job must start from the beginning, meaning you must drop and recreate the target table.