Raspberry Pi Kernel mismatch

I have tried a number of solutions in my attempt to get the drivers for a respeaker pi-hat installed on a PI B+.

I have tried the HinTak version of the installer, I have tried Buster OS, and I have also tried the image with the drivers pre-built in, 2021-05-07-raspios-buster-armhf-lite-respeaker.img

Nothing has worked. Are there any solutions available?