That is a situation it is difficult to get out of. The Kernel Modules (drivers) must exactly match the version number of the Kernel that is running the system. By interrupting the upgrade part way through you have ended up with a Kernel and Modules that don't match. Assuming you haven't done much on that Pi yet, it really would be easiest to download the latest Raspbian Stretch image and write that to the card using Etcher. Then you can start again (also, as a new image has only just been released, you shouldn't need to do any updates as they will already be on there.
If you do have something vitally important on your card and want to keep it, it is possible, but not that easy, to either recover the card, or to get the contents off. Both options would either require a Linux system with Card Reader, or another SD card with Raspbian on and a USB Card Reader for the Pi.