Hi Kevin,
Thanks for reaching out to us, and sorry to hear about this issue you are experiencing.
I visited the URL you shared and I just see the login form. Cna you send me over a description of the error you are getting? If that is not visible in the screen itself you can look for it the server error logs (if yo are not sure about this reach out to your hosting provider and ask for them).
Also, have you tried following the steps described in our Testing for conflicts guide? This way we can see if this is a problem in our plugin or a conflict with the theme or other installed plugins.
Please let me know about this,
Best,
Nico