Self Balancing Robot electronics Simulation

Hallo I am Kind of new to using proteus can someone help me with this pin connections. :pray:

A.) I researched somewhere were it said i need to connect the +Ve of battery to VMOT of the stepper Driver . but i can not identify the VMOT pin on the driver i just connected it to 28 which is represented by VBB2. any body know which it is

B.) Is my Stepper Motor Connections okay

Exactly which stepper driver are you using ?
My eyes are not good enough to read it from the schematic

its The A4988 Bipolar Stepper Driver

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