It could be that the main scope was way out of focus; everything will be
just a dark blur at night, especially if you are not looking at something large and/or bright such as the moon, or Jupiter.
Start off by finding a direction during the day where you can find something a long way off, such as a street light. Use a low power eyepiece and focus the scope on the distant object, and centralise it in the scope's field of view. Align the cross hairs in the finder scope on the same distant object using the radially spaced
screws on the finder. The main scope's focus should be not too far out when you look at the sky at night. If out of focus, the stars will look like
white discs. Turn the focuser until the stars look like pinpricks.
I assume that you bought it new, so that it is unlikely that there is anything wrong with the scope.
raymo
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