Help!!! How To Login in Cpanel with Addon domain?

Help!!! How To Login in Cpanel with Addon domain?
I ca't find cpanel with addon doma?n.

You can find addon domains inside your control panel. You can access control panel from Profreehost client area.

cant go to Cpanel and not show ''addon domain'' but this msg came here, below msg

''maintenance is underway on your server
you will see your site offline
until the work has completed,
please do not make a
support ticket about this. ''

Apologies for the inconvenience