That's very odd, since we don't technically have a version "0" for that file. Not sure how it would've been set like that. Glad to hear you fixed it. You can use that same page at anytime to verify that your domains are at least being loaded correctly by visiting that page. If there are no other domains showing Errors or Warnings you should be fine.
Also side note, tickets are now free as long as you have an active license. If you had unused support tickets, contact sales and they can work with you on getting reimbursed for those. You can read more about that and all our other changes on our Blog post, https://www.smartertools.com/blog/2018/11/1-new-smartertools