Looks like a database connect issue.
Did you setup a database prior.
You need to.
The script will not create a database for you.
You will need to goto whatever tool your host provides and create a database,Then a user and password.
Then use that info in step two.
If you did then maybe you have a incorrect user/password in step two.
Could be case sensitive.
Also the db user account should be pretty much setup as a user with global rights.
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Blue Man Group