Hi,
A mosfet is controlled ON/OFF with it's Vgs.
Vgs means voltage between gate and source.
Therefore the driver IC need both these connections: gate and source of the Mosfet.
But you only connected gate to the driver.
--> connect mosfet_source to driver_Vs
This also is urgent for the bootstrap capacitor to be charged.
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In real word your circuit will destroy itself. The motor is an inductive load, when the Mosfet is being switched OFF this generates high voltage spikes, killing the Mosfet.
--> use a free wheeling diode across the motor.
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Dismiss R2. Or make it 100k, if you think you need it.
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In a half bridge configuration D2 makes no sense.
Klaus