I recently installed Multi-Account Container on my Firefox browser, and I assigned LCPDFR.com onto one of it's containers. Other sites worked well but on LCPDFR.com, when I attempt to login, it said

Then I unassigned LCPDFR.com (moving it back to default container), logged out, and then attempt to log back in in that container, but this problem persists. When I attempt to login on the default container, this problem also happens as well. (Tried to use Private mode, clearing Cookies & Site data, uninstalling extension, restarting browser, disabling Privacy Badger & integrated Privacy Protection, using Email to login).

 

It was fine with Remember me though.

Update: The Edge browser on my phone also having this problem. I changed my name once, not sure if this causes problem.

UPDATE 2: Got this, not sure if it is the cause.

Edited September 16, 20214 yr by WithLithum
Additional information

I don't think the error has much to do with your installation of Firefox/browser used.

 

That error tends to occur when you are trying to login/register with a blacklisted network/ASN. This can happen when using a VPN that has been blocked due to spam or abuse. If you need to use a VPN when using LCPDFR.com, try switching location for the login. These checks are only done when logging in, so you can go back to using your original VPN location afterwards.

 

If I'm wrong and you aren't using a VPN with that login or you've tried the above and are still having issues, please PM me the IP address so I can double check what's happening.