I added an addon domain "weng.sg" in cpanel and everything looks fine in cpanel. But when I try to access my domain using my browser, I get redirected to http://staff.x10hosting.com/default.web.page/ with the following error message:

Server Error
There has been a server error. Please try again momentarily.
If the issue persists, create a support ticket.

My account is on Stoli. Greatly appreciate if you could help. Thanks!