Please follow the steps listed in this link to share the crash log to Illustrator team, this will help us investigate and fix this issue. https://helpx.adobe.com/in/illustrator/kb/crash-next-steps.html
An error occurred while saving the commentAnonymous commented
I have been having crashes in illustrator as well, although I have been doing very simple moves or using simple tools like: moving a shape, selecting text).
I am using MacOS version 10.13.6
The page completely freezes and I cant even access any option from the main mac toolbar, I would have to force shut down the whole computer. This happened three times for three days after a short usage of the software
Thank you for your support