It appears that you are referencing ground for V1 (which implies that V1 goes negative at some point), and you are using a virtual ground for a reference and a rail-splitter to set the reference at 4.5V. I am assuming that this means you are using a single-supply setup (op amp Vcc is connected to 9V and Vee is connected to ground). If this is the case, then the op amp is clipping because it can't drive the signal below ground when the sine wave goes below 4.5V. When Vin is below 4.5V (or the virtual ground reference value), the input is negative relative to it, so the op amp will try to drive a negative voltage so that V+ and V- (voltages at the non-inverting and inverting inputs, respectively) are equal.
You have the input source referenced to ground right now (ex. the sine wave input has the minus side connected to ground). Try connecting it to 4.5V. That should allow you to get to 0V on the input source before clipping occurs. Ideally, you would offset it by half of the peak-to-peak voltage, which gives you equal room on both sides. Keep in mind that with a gain of 2 (though as you have drawn the circuit, you have a gain of 4), you should ideally offset the input source by 4.5V, and the peak-to-peak voltage should be no larger than 4.5V, or an amplitude of 2.25V.
Hopefully that helps.