WHMCS portal giving 404 error when you click anything

Everything was working until just recently, now suddenly once I click anything I get a 404 error
plug in configured to use:
http://snowpawsolutions.website/account-management/
That loads fine.
Then you try to go to order, payment or support and you get a 404 error.

If if matters WHMCS is installed at http://account.snowpawsolutions.net

I've enabled support, so hopefully you can figure out what is causing the issue.
Thanks!
Rob