Scrivener disappeared after Mojave Update

My 2017- 15" McBook Pro just updated to Mojave 10.14.6 - but Scrivener has disappeared. In the dock there is now a question mark and it is no longer in my aps file on Finder. When I went to the aps store I see Scrivener 3, but it does not recognize me has having already purchased this version, and I am afraid that even if I do pay for the new version, my work will be lost. What to do?

Mac Scrivener 2 is not supported with Mac OS Mojave.

If you install Scrivener 3, your projects will still be right where you left them. They are stored independently of the Scrivener application. I’d recommend taking a look at our upgrade guide for Scrivener 2 users, though, as Scrivener 3 has some very significant changes. You can find it here:
literatureandlatte.com/scri … date-guide

We are not able to offer upgrade discounts through the Apple Store. To receive a discount coupon for our own store, send a copy of your Apple purchase receipt to our support address:
literatureandlatte.com/contact-us

Katherine