Service doesnt UP!!!!

Hi!!!
I had a break electrical service and my system go down. Now when I try to up
the postgres service I get this error:

psql: could not connect to server: No such file or directory
        Is the server running locally and accepting
        connections on Unix domain socket "/tmp/.s.PGSQL.5432"?
createdb: database creation failed

I went to directory data and delete postmaster.pid and postmaster.opts but
nothing happens.
I have the same error.
PLease I need urgent help!!!

I lost my data??
What can I do to back service up with my data??




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