Github 500 error auth

[Snipeur060]

Issue description
You can't use github account to register / login

How to reproduce
Steps to reproduce the behavior:

1. Register
2. Use github method
3. Wait and 500 error appear

Expected behavior
Login and register

Screenshots
If applicable, add screenshots to help explain your problem.
(no screenshot)

Additional context

[v-rudkovskiy]

PR: https://github.com/Labs64/NetLicensing-Core/pull/114

[r-brown]

Hello @Snipeur060 please make sure your email address specified at GitHub settings is set as "public"
e.g.
"Keep my email addresses" private flag is unset