Thanks. A new problem when connecting isql*plus to database

Thanks for everyone helping me.
I can browse the isql*plus page now. However, When I connect isql*plus to the database, I got the error displayed in the isqlplus login browser screen:
ERROR:
ORA-01034: ORACLE not available
ORA-27101: shared memory realm does not exist
Linux Error: 2: No such file or directory
Pls help.

Can you connect to it from command line SQL*Plus?
It sounds like the database is not running. You should start up the database and try again.
Alison

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