Since I cannot start a new topic in the Issue & Troubleshooting section. I will post what I found here.
In the fn_generate_password() function, in the $chars variable the lowercase "l" is missing. Is this on purpose or by accident?
$chars = 'abcdefghijkmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
It jumps from "k" to "m".