I have not had to efile but I've seen ppl with same problem and they click refresh updates and efiles go through. I have not heard about 2017. You cant efile 2017?

i have tried updating 2018 and still cannot efile

Using the Refresh updates option (at the bottom of the Updates drop down menu) or the Update Repair Tool from the Windows program menu seems to fix it for people, if neither of these work, then Im afraid you need to call support.