Credit score went to 0

What kind of credit score are you looking at?  There are many.  The real official credit score is called a "FICO" score and is produced by a company called FICO (formally "Fair Isaac Corporation").  There are at least 60 different FICO scores, because the company has 4-5 mathematical models they use, and some lenders prefer older versions of the models, and your score can be different depending on which of 3 credit bureaus the data comes from.  FICO charges for their scores.

Turbo offers a "True-vantage score" I think, which uses only data from Transunion.  Equifax and Experian also have their own in-house scores, all of which are supposedly similar to a FICO score, but they don't have to pay FICO to get the score. 

If you have checked your credit reports at annualcreditreport.com and they are all correct and show the paid-off debts, then my guess is your situation falls outside the usual models, and I would just say to wait.  Remember that any score is only useful if you want to borrow money--if you are not planning to borrow money soon, then no one looks at your score except you.

If you want to go to the FICO web site and buy a subscription, you can get your real FICO scores.  Then, if they can't give you a score either, you would be able to call them and ask why (since you would be a paid subscriber.)  Cancel the subscription as soon as you get a satisfactory answer so you aren't paying $20-$40 a month for something you don't really need and probably can't afford. But I would probably just wait another month and see what happens.