Multisite

Configurei o multisite certinho no host da one.com, porem quando crio um site e vou acessar ele dá o seguinte erro:

Isso quando criei a pasta

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Forbidden

You don't have permission to access / on this server.

se pasta criada mostra isso:

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Internal Server Error

The server encountered an internal error or misconfiguration and was unable to complete your request.

Please contact the server administrator, support@one.com and inform them of the time the error occurred, and anything you might have done that may have caused the error.

More information about this error may be available in the server error log.

Já aconteceu com alguém isso, obrigado desde já