I've opened a trouble ticket, but I am posting here just to make sure it gets attention and a fix asap.
Yesterday, before they started configuring add-on domains, my main site url started working again. Later that day, one add-on domain of mine started working, but the other pointed to a broken page on my main site, and my main site showed the cpanel warning page "no site configured for this address"...
16 hours later... The problem is still there. I have to assume that it's been misconfigured now, rather than it's just temporarily screwed up while in the middle of being fixed.
Checking my cpanel (which thank god I can finally access after 3 days), it says one of my add-on domains has actually been added as a parked domain. I can't immediately tell what's wrong with the main url, since cpanel seems to access it fine.
Main url: www.ratsinthewalls.com (gives cpanel warning page)
Add-on that is wrongly configured as a parked domain: www.decomposingtrain.com
Please get this sorted out asap.