I have an issue when disabling this plugin, my frontend site will turn white. How do i fix this issue?

Enable PHP debug log.
You probably use one of functions from plugin without checking if function exists.

Do you know by any chance which file I need to check out to do the necessary fixes?

Fyi, I didn't use any functions from this plugin manually. I simply installed and did some configuration. I suspect it did modify some files but I have no idea which one.

Check in theme folder head.php/header.pho for functions starting with ais_

All right, got it. Thank you very much for the help!