Hi Johnny,
I suggest you verify:
1) If code is working properly.
2) If register settings correspond to the setting in your board.
For #1, I suggest you use an I2C sniffer tool to cross-check that the data sent matches the data received.
For #2, Are there any major changes in your board with respect to AIC3256EVM-U circuit? Is master clock active and is I2S provided to the AIC3256? I2S must be active either internally or externally so if you don't connect I2S to another chip, then you need to configure the AIC3256 with BCLK and WCLK as outputs and configure the BDIV divider accordingly.
Regards,
J-