Good luck, and may your vectors be smooth again!
If you are seeing the pop-up: — don’t panic. You haven’t lost your files, and your software isn't permanently broken.
This error essentially means CorelDRAW cannot communicate with its own core engine (the VGCore library). Fortunately, this is a known issue with a handful of reliable fixes.
Few things are more frustrating than sitting down to work on a design, double-clicking CorelDRAW 2020, and being greeted by a cryptic error message instead of your workspace.