I can't log into the control panel

When I try to log in, the screen returns to its original state without displaying any errors. The username and password are correct.

Video (Google Disk)

disk full?

Caps Lock activated? With only that information is hard to help you. Is that the admin user? if not, have you tried to log in using the admin user and reset password? if yes, have you terminal access to your server as root to reset admin or user password via

v-change-user-password <user> 'YourNewPassword'

command?

may be

Later I’ll have SSH access and be able to see how full the disk is. I’ll let you know if that was a problem.

Later I’ll have SSH access and be able to see how full the disk is. I’ll let you know if that was a problem.