HINT: To avoid a database shutdown, execute a full-database VACUUM in "patnadbold". ERROR: could not access status of transaction 33011 DETAIL: could not open file "pg_clog/0000": No such file or directory
exit
After this i am able to stop /start my db server but i am not able to connect to my databases (it tells to run vacuum full first on patnadbold databases)
The message does *not* say to run "VACUUM FULL", it says to run a "full-database VACUUM". Different things. Connect to "patnadbold" and issue "VACUUM;" (without double-quotes) as the others have suggested.