Periodic Table Database - Build a Periodic Table Database

Tell us what’s happening:
Describe your issue in detail here.

When I try to connect to psql it says psql: error: connection to server on socket “/var/run/postgresql/.s.PGSQL.5432” failed: No such file or directory
Is the server running locally and accepting connections on that socket?
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Challenge: Periodic Table Database - Build a Periodic Table Database

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