Hall sensor Alignment zero degree alignment for FOC

I am running the FOC in closed loop and it runs at high speed, but if i observe the current waveform it is not sinusoidal. One major question i have is i did not perform any hall (rotor) angle alignment or 0 degree alignment required for FOC. Could this be one reason for the issue?

And there is one statement in the ST documentation
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It says no initial rotor prepositioning required for hall sensors.

I get the line to line voltage and current as below
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In between there is invalid switching, how to find the root cause? Please help.